NTN

  Item # d D B r Static Load Rating Dynamic Load Rating 51116 3.1496 in 80.000 mm 4.1339 in 105.000 mm 0.7480 in 19.000 mm 0.0394 in 1.000 mm 31500 lbf 141000 N 141.00 kN 10000 lbf 44500 N 44.50 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51114 2.7559 in 70.000 mm 3.7402 in 95.000 mm 0.7087 in 18.000 mm 0.0394 in 1.000 mm 28600 lbf 127000 N 127.00 kN 9650 lbf 43000 N 43.00 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51110 1.9685 in 50.000 mm 2.7559 in 70.000 mm 0.5512 in 14.000 mm 0.0236 in 0.600 mm 17000 lbf 75500 N 75.50 kN 6450 lbf 28800 N 28.80 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51109 1.7717 in 45.000 mm 2.5591 in 65.000 mm 0.5512 in 14.000 mm 0.0236 in 0.600 mm 15500 lbf 69000 N 69.00 kN 6250 lbf 27900 N 27.90 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51107 1.3780 in 35.000 mm 2.0472 in 52.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 10000 lbf 44500 N 44.50 kN 4600 lbf 20400 N 20.40 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51104 0.7874 in 20.000 mm 1.3780 in 35.000 mm 0.3937 in 10.000 mm 0.0118 in 0.300 mm 5550 lbf 24700 N 24.70 kN 3200 lbf 14200 N 14.20 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51101 0.4724 in 12.000 mm 1.0236 in 26.000 mm 0.3543 in 9.000 mm 0.0118 in 0.300 mm 3450 lbf 15400 N 15.40 kN 2320 lbf 10300 N 10.30 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings             2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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  Item # d D B r Static Load Rating Dynamic Load Rating 51100 0.3937 in 10.000 mm 0.9449 in 24.000 mm 0.3543 in 9.000 mm 0.0118 in 0.300 mm 3150 lbf 14000 N 14.00 kN 2250 lbf 10000 N 10.00 kN Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.” 1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings               2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information. 4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 2316S Self-Aligning Ball Bearing (Inside Dia - 80mm, Outside Dia - 170mm) SPECIFICATIONS Type of Product : Self-Aligning Ball Bearing Inside Diameter (d) (mm) : 80 Outside Diameter D (mm) : 170 Width Dia mm : 58 Model No : 2316S 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2210K Self Aligning Ball Bearings w/ Tapered Bore SPECIFICATIONS Bore Type Tapered Bore Diameter 50 mm, 1.9685 in Outside Diameter 90 mm, 3.5433 in Overall Width 23 mm, 0.9055 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 5250 lbf Seal Type None Static Load Capacity 1900 lbf Precision Rating Class 0 Maximum RPM 8000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Harmonization Code 8482.10.5060 Outer Ring Width 0.9055 in; 23.000 mm Inner Ring Width 23.000 mm, 0.9055 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359261882 Weight 1.261 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2205K Self Aligning Ball Bearings w/ Tapered Bore SPECIFICATIONS Bore Type Tapered Bore Diameter 25 mm, 0.9843 in Outside Diameter 52 mm, 2.0472 in Overall Width 18 mm, 0.7087 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 2790 lbf Seal Type None Static Load Capacity 775 lbf Precision Rating Class 0 Maximum RPM 14000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Harmonization Code 8482.10.5060 Outer Ring Width 0.7087 in; 18.000 mm Inner Ring Width 18.000 mm, 0.7087 in Fillet Radius 1.000 mm, 0.0394 in Manufacturer UPC Number 4547359261622 Weight 0.335 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1318K Self-Aligning Ball Bearing - Taper 1:12, 90 mm ID, 190 mm OD, 43 mm Width, Open, CN SPECIFICATIONS Bore Type Tapered Bore Diameter 90.000 mm, 3.5433 in Outside Diameter 190.000 mm, 7.4803 in Overall Width 43.000 mm, 1.6929 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 26300 lbf Seal Type None Static Load Capacity 10000 lbf Precision Rating Class 0 Maximum RPM 3800 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 1.6929 in; 43.000 mm Inner Ring Width 43.000 mm, 1.6929 in Fillet Radius 0.1181 in, 3.000 mm Manufacturer UPC Number 4547359257373 Weight 12.474 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN1305K Self Aligning Ball Bearings w/ Tapered Bore SPECIFICATIONS Bore Type Tapered Bore Diameter 25 mm, 0.9843 in Outside Diameter 62 mm, 2.4409 in Overall Width 17 mm, 0.6693 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 4100 lbf Seal Type None Static Load Capacity 1120 lbf Precision Rating Class 0 Maximum RPM 13000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Harmonization Code 8482.10.5060 Outer Ring Width 0.6693 in; 17.000 mm Inner Ring Width 17.000 mm, 0.6693 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359746303 Weight 0.553 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1208K Self-Aligning Ball Bearing - Taper 1:12, 40 mm ID, 80 mm OD, 18 mm Width, Open, CN SPECIFICATIONS Bore Type Tapered Bore Diameter 1.5748 in, 40.000 mm Outside Diameter 3.1496 in, 80.000 mm Overall Width 18.000 mm, 0.7087 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 4350 lbf Seal Type None Static Load Capacity 1460 lbf Precision Rating Class 0 Maximum RPM 9000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.7087 in; 18.000 mm Inner Ring Width 18.000 mm, 0.7087 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359513271 Weight 0.899 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1207K Self-Aligning Ball Bearing - Taper 1:12, 35 mm ID, 72 mm OD, 17 mm Width, Open, CN SPECIFICATIONS Bore Type Tapered Bore Diameter 35.000 mm, 1.3780 in Outside Diameter 72.000 mm, 2.8346 in Overall Width 17.000 mm, 0.6693 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 3550 lbf Seal Type None Static Load Capacity 1150 lbf Precision Rating Class 0 Maximum RPM 10000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.6693 in; 17.000 mm Inner Ring Width 17.000 mm, 0.6693 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359513172 Weight 0.694 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1206K Self-Aligning Ball Bearing - Taper 1:12, 30 mm ID, 62 mm OD, 16 mm Width, Open, CN SPECIFICATIONS Bore Type Tapered Bore Diameter 1.1811 in, 30.000 mm Outside Diameter 62.000 mm, 2.4409 in Overall Width 16.000 mm, 0.6299 in Closure Type Open Cage Type Fiber Glass Reinforced Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 3550 lbf Seal Type None Static Load Capacity 1050 lbf Precision Rating Class 0 Maximum RPM 12000 rpm Bearing Material High Carbon Chrome Steel Cage Material Nylon Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.6299 in; 16.000 mm Inner Ring Width 16.000 mm, 0.6299 in Fillet Radius 1.000 mm, 0.0394 in Manufacturer UPC Number 4547359254945 Weight 0.474 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1205K Self-Aligning Ball Bearing - Taper 1:12, 25 mm ID, 52 mm OD, 15 mm Width, Open, CN SPECIFICATIONS Bore Type Tapered Bore Diameter 0.9843 in, 25.000 mm Outside Diameter 52.000 mm, 2.0472 in Overall Width 15.000 mm, 0.5906 in Closure Type Open Cage Type Fiber Glass Reinforced Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 2740 lbf Seal Type None Static Load Capacity 740 lbf Precision Rating Class 0 Maximum RPM 14000 rpm Bearing Material High Carbon Chrome Steel Cage Material Nylon Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.5906 in; 15.000 mm Inner Ring Width 15.000 mm, 0.5906 in Fillet Radius 1.000 mm, 0.0394 in Manufacturer UPC Number 4547359254877 Weight 0.289 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 51315 Ball Thrust Bearing - Single-Direction, 75 mm Ball Thrust Bearing - Single-Direction, 75 mm Bore, 135 mm OD, 44 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 75.000 mm, 2.9528 in Outside Diameter 135.000 mm, 5.3150 in Overall Width 44.000 mm, 1.7323 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 89000 lbf Seal Material None Dynamic Load Capacity 38500 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 1800 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 0.0591 in, 1.500 mm Manufacturer UPC Number 4547359307177 Harmonization Code 8482.10.5008 Weight 5.754 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51310 Ball Thrust Bearing - Single-Direction, 50 mm Ball Thrust Bearing - Single-Direction, 50 mm Bore, 95 mm OD, 31 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 1.9685 in, 50.000 mm Outside Diameter 3.7402 in, 95.000 mm Overall Width 1.2205 in, 31.000 mm Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 45500 lbf Seal Material None Dynamic Load Capacity 21700 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 2600 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359307115 Harmonization Code 8482.10.5008 Weight 2.033 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51306 Ball Thrust Bearing - Single-Direction, 30 mm Ball Thrust Bearing - Single-Direction, 30 mm Bore, 60 mm OD, 21 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 1.1811 in, 30.000 mm Outside Diameter 60.000 mm, 2.3622 in Overall Width 0.8268 in, 21.000 mm Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 17600 lbf Seal Material None Dynamic Load Capacity 9650 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 3900 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 1.000 mm, 0.0394 in Series 513 Manufacturer UPC Number 4547359307047 Harmonization Code 8482.10.5008 Weight 0.571 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51215 Ball Thrust Bearing - Single-Direction, 75 mm Ball Thrust Bearing - Single-Direction, 75 mm Bore, 110 mm OD, 27 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 75.000 mm, 2.9528 in Outside Diameter 110.000 mm, 4.3307 in Overall Width 27.000 mm, 1.0630 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 47000 lbf Seal Material None Dynamic Load Capacity 17400 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 2600 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.000 mm, 0.0394 in Manufacturer UPC Number 4547359306767 Harmonization Code 8482.10.5008 Weight 1.927 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51211 Ball Thrust Bearing - Single-Direction, 55 mm Ball Thrust Bearing - Single-Direction, 55 mm Bore, 90 mm OD, 25 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 55.000 mm, 2.1654 in Outside Diameter 90.000 mm, 3.5433 in Overall Width 0.9843 in, 25.000 mm Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 35500 lbf Seal Material None Dynamic Load Capacity 15600 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 3000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.000 mm, 0.0394 in Series 512 Manufacturer UPC Number 4547359306729 Harmonization Code 8482.10.5008 Weight 1.296 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51205 Ball Thrust Bearing - Single-Direction, 25 mm Ball Thrust Bearing - Single-Direction, 25 mm Bore, 47 mm OD, 15 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 0.9843 in, 25.000 mm Outside Diameter 1.8504 in, 47.000 mm Overall Width 15.000 mm, 0.5906 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 11400 lbf Seal Material None Dynamic Load Capacity 6250 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 5300 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 512 Manufacturer UPC Number 4547359306583 Harmonization Code 8482.10.5008 Weight 0.236 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51204 Ball Thrust Bearing - Single-Direction, 20 mm Ball Thrust Bearing - Single-Direction, 20 mm Bore, 40 mm OD, 14 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 20.000 mm, 0.7874 in Outside Diameter 1.5748 in, 40.000 mm Overall Width 14.000 mm, 0.5512 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 8450 lbf Seal Material None Dynamic Load Capacity 5000 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 5900 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 512 Manufacturer UPC Number 4547359306569 Harmonization Code 8482.10.5008 Weight 0.179 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51202 Ball Thrust Bearing - Single-Direction, 15 mm Ball Thrust Bearing - Single-Direction, 15 mm Bore, 32 mm OD, 12 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 15.000 mm, 0.5906 in Outside Diameter 1.2598 in, 32.000 mm Overall Width 0.4724 in, 12.000 mm Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 5600 lbf Seal Material None Dynamic Load Capacity 3750 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 7100 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 512 Manufacturer UPC Number 4547359306521 Harmonization Code 8482.10.5008 Weight 0.095 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51201 Ball Thrust Bearing - Single-Direction, 12 mm Ball Thrust Bearing - Single-Direction, 12 mm Bore, 28 mm OD, 11 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 0.4724 in, 12.000 mm Outside Diameter 28.000 mm, 1.1024 in Overall Width 11.000 mm, 0.4331 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 4250 lbf Seal Material None Dynamic Load Capacity 2970 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 8000 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 512 Manufacturer UPC Number 4547359306507 Harmonization Code 8482.10.5008 Weight 0.068 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51115 Ball Thrust Bearing - Single-Direction, 75 mm Ball Thrust Bearing - Single-Direction, 75 mm Bore, 100 mm OD, 19 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 75.000 mm, 2.9528 in Outside Diameter 100.000 mm, 3.9370 in Overall Width 19.000 mm, 0.7480 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 30500 lbf Seal Material None Dynamic Load Capacity 10000 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 3200 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.000 mm, 0.0394 in Series 511 Manufacturer UPC Number 4547359306156 Harmonization Code 8482.10.5008 Weight 0.882 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51113 Ball Thrust Bearing - Single-Direction, 65 mm Ball Thrust Bearing - Single-Direction, 65 mm Bore, 90 mm OD, 18 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 65.000 mm, 2.5591 in Outside Diameter 90.000 mm, 3.5433 in Overall Width 18.000 mm, 0.7087 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 26300 lbf Seal Material None Dynamic Load Capacity 9350 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 3500 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.000 mm, 0.0394 in Series 511 Manufacturer UPC Number 4547359306101 Harmonization Code 8482.10.5008 Weight 0.687 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51112 Ball Thrust Bearing - Single-Direction, 60 mm Ball Thrust Bearing - Single-Direction, 60 mm Bore, 85 mm OD, 17 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 60.000 mm, 2.3622 in Outside Diameter 3.3465 in, 85.000 mm Overall Width 17.000 mm, 0.6693 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 25400 lbf Seal Material None Dynamic Load Capacity 9350 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 3700 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 1.000 mm, 0.0394 in Series 511 Manufacturer UPC Number 4547359306088 Harmonization Code 8482.10.5008 Weight 0.600 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51111 Ball Thrust Bearing - Single-Direction, 55 mm Ball Thrust Bearing - Single-Direction, 55 mm Bore, 78 mm OD, 16 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 55.000 mm, 2.1654 in Outside Diameter 78.000 mm, 3.0709 in Overall Width 16.000 mm, 0.6299 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 20900 lbf Seal Material None Dynamic Load Capacity 7850 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 4000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 0.600 mm, 0.0236 in Series 511 Manufacturer UPC Number 4547359306071 Harmonization Code 8482.10.5008 Weight 0.496 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51108 Ball Thrust Bearing - Single-Direction, 40 mm Ball Thrust Bearing - Single-Direction, 40 mm Bore, 60 mm OD, 13 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 1.5748 in, 40.000 mm Outside Diameter 60.000 mm, 2.3622 in Overall Width 13.000 mm, 0.5118 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 14200 lbf Seal Material None Dynamic Load Capacity 6050 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 5000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Cage Type Pressed Fillet Radius 0.600 mm, 0.0236 in Series 511 Manufacturer UPC Number 4547359306002 Harmonization Code 8482.10.5008 Weight 0.258 lb     Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51106 Ball Thrust Bearing - Single-Direction, 30 mm Ball Thrust Bearing - Single-Direction, 30 mm Bore, 47 mm OD, 11 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 1.1811 in, 30.000 mm Outside Diameter 1.8504 in, 47.000 mm Overall Width 11.000 mm, 0.4331 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 9450 lbf Seal Material None Dynamic Load Capacity 4600 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 6200 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 511 Manufacturer UPC Number 4547359305920 Harmonization Code 8482.10.5008 Weight 0.130 lb     Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51105 Ball Thrust Bearing - Single-Direction, 25 mm Ball Thrust Bearing - Single-Direction, 25 mm Bore, 42 mm OD, 11 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 0.9843 in, 25.000 mm Outside Diameter 42.000 mm, 1.6535 in Overall Width 11.000 mm, 0.4331 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 8300 lbf Seal Material None Dynamic Load Capacity 4400 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 6500 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.600 mm, 0.0236 in Series 511 Manufacturer UPC Number 4547359305890 Harmonization Code 8482.10.5008 Weight 0.115 lb     Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51103 Ball Thrust Bearing - Single-Direction, 17 mm Ball Thrust Bearing - Single-Direction, 17 mm Bore, 30 mm OD, 9 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 17.000 mm, 0.6693 in Outside Diameter 1.1811 in, 30.000 mm Overall Width 9.000 mm, 0.3543 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 4100 lbf Seal Material None Dynamic Load Capacity 2430 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 8500 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.300 mm, 0.0118 in Series 511 Manufacturer UPC Number 4547359305869 Harmonization Code 8482.10.5008 Weight 0.049 lb     Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 51102 Ball Thrust Bearing - Single-Direction, 15 mm Ball Thrust Bearing - Single-Direction, 15 mm Bore, 28 mm OD, 9 mm Width, Separable SPECIFICATIONS Bore Type Round Thrust Bearing Type Single-Direction Bore Diameter 15.000 mm, 0.5906 in Outside Diameter 28.000 mm, 1.1024 in Overall Width 9.000 mm, 0.3543 in Country of Origin JP Outside Diameter Design Straight Closure Type Open Separable or Banded Separable Configuration One Internal Clearance CN Precision Rating ISO Class 0 Static Load Capacity 3800 lbf Seal Material None Dynamic Load Capacity 2360 lbf Seal Type None Operating Temperature Range -40 to 250 ºF Maximum RPM 8800 rpm Bearing Material High Carbon Chrome Steel Cage Material Resin Cage Type Molded Fillet Radius 0.300 mm, 0.0118 in Series 511 Manufacturer UPC Number 4547359305852 Harmonization Code 8482.10.5008 Weight 0.046 lb   Thrust Bearings Thrust bearings are designed primarily to support axial loads at contact angles between 30° and 90°. Similar to radial bearings, thrust bearing designs may incorporate balls or rollers as rolling elements.The configuration and characteristics of each type of bearing are given below.With thrust bearings, it is necessary to supply an axial preload in order to prevent slipping between the bearing’s rolling elements and raceways.For more detailed information, please refer to section “8.3 Bearing preload.”       1.  Single direction thrust ball bearings As shown in Fig. 1, the steel balls of single direction thrust ball bearings are arranged between a pair of a pair of washers (shaft washer and housing washer), and the normal contact angle is 90°. Axial loads can be supported in only one direction, and radial loads cannot be accommodated. These bearings are not suitable for high speed operation.Table 1 lists the standard cage types for single direction thrust ball bearings                                   2.  Thrust spherical roller bearings Just like spherical roller bearings, the center of the spherical surface for thrust spherical roller bearings is the point where the raceway surface of the housing raceway washer meets the center axis of the bearing. Since thrust spherical roller bearings incorporate barrel-shaped rollers as rolling elements, they also have self-aligning properties. (See Fig. 2) Under normal load conditions, the allowable misalignment is 1/60 to 1/30, although this will vary depending upon the bearing’s dimension series.These bearings use machined copper alloy cages and a guide sleeve for the cage is attached to the inner ring. These bearings have a high axial load capacity, and can accommodate some radial load when the ring is axially loaded. It is necessary to operate these bearings where the load condition meets Fr / Fa ≦ 0.55.The design for spherical thrust bearings is such that lubricant cannot enter the gap between the cage and the guide sleeve. Therefore, oil lubrication should be used, even in low speed operation.                 3. Thrust cylindrical roller bearings Thrust bearings incorporating cylindrical rollers are available in single row, double row, triple row, and four row varieties. (See Fig. 3) NTN Engineering offers the 811, 812 and 893 series that conform to dimension series 11, 12 and 93 prescribed in JIS, as well as other special dimensions.While thrust cylindrical roller bearings are only able to receive axial loads, the axial loads can be heavy due to the high axial rigidity of the bearing. For series 811, 812, and 893, the dimension tables are listed section “E. Needle roller bearings.” Bearings with dimensions not listed in the dimension tables are also manufactured. Contact NTN Engineering for more information.           4.  Thrust tapered roller bearings Although not listed in the dimension tables, tapered roller bearings like those in Fig. 4 are also manufactured. Contact NTN Engineering for more detailed information.    

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NTN 2310 Self-Aligning Ball Bearing - Straight Bore, 50 mm ID, 110 mm OD, 40 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 1.9685 in, 50.000 mm Outside Diameter 110.000 mm, 4.3307 in Overall Width 1.5748 in, 40.000 mm Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 14600 lbf Seal Type None Static Load Capacity 4550 lbf Precision Rating Class 0 Maximum RPM 6300 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 1.5748 in; 40.000 mm Inner Ring Width 1.5748 in, 40.000 mm Fillet Radius 2.000 mm, 0.0787 in Series 23 Manufacturer UPC Number 4547359521313 Weight 3.587 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2220 Self Aligning Ball Bearings - Cylindrical Bore SPECIFICATIONS Bore Type Cylindrical Bore Diameter 100.000 mm, 3.9370 in Outside Diameter 180.000 mm, 7.0866 in Overall Width 1.8110 in, 46.000 mm Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 21200 lbf Seal Type None Static Load Capacity 8650 lbf Precision Rating Class 0 Maximum RPM 3800 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Outer Ring Width 1.8110 in; 46.000 mm Inner Ring Width 1.8110 in, 46.000 mm Fillet Radius 0.0827 in, 2.100 mm Weight 10.249 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2209 Self-Aligning Ball Bearing - Straight Bore, 45 mm ID, 85 mm OD, 23 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 1.7717 in, 45.000 mm Outside Diameter 3.3465 in, 85.000 mm Overall Width 23.000 mm, 0.9055 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 5250 lbf Seal Type None Static Load Capacity 1830 lbf Precision Rating Class 0 Maximum RPM 8500 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.9055 in; 23.000 mm Inner Ring Width 23.000 mm, 0.9055 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359261790 Weight 1.193 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2208 Self-Aligning Ball Bearing - Straight Bore, 40 mm ID, 80 mm OD, 23 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 1.5748 in, 40.000 mm Outside Diameter 3.1496 in, 80.000 mm Overall Width 23.000 mm, 0.9055 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 5050 lbf Seal Type None Static Load Capacity 1650 lbf Precision Rating Class 0 Maximum RPM 9000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.9055 in; 23.000 mm Inner Ring Width 23.000 mm, 0.9055 in Fillet Radius 1.100 mm, 0.0433 in Manufacturer UPC Number 4547359518696 Weight 1.087 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 2201 Self-Aligning Ball Bearing - Straight Bore, 12 mm ID, 32 mm OD, 14 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 0.4724 in, 12.000 mm Outside Diameter 1.2598 in, 32.000 mm Overall Width 14.000 mm, 0.5512 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 1740 lbf Seal Type None Static Load Capacity 390 lbf Precision Rating Class 0 Maximum RPM 26000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.5512 in; 14.000 mm Inner Ring Width 14.000 mm, 0.5512 in Fillet Radius 0.600 mm, 0.0236 in Manufacturer UPC Number 4547359518634 Weight 0.115 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1310 Self-Aligning Ball Bearing - Straight Bore, 50 mm ID, 110 mm OD, 27 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 1.9685 in, 50.000 mm Outside Diameter 110.000 mm, 4.3307 in Overall Width 27.000 mm, 1.0630 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 9800 lbf Seal Type None Static Load Capacity 3150 lbf Precision Rating Class 0 Maximum RPM 6700 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 1.0630 in; 27.000 mm Inner Ring Width 27.000 mm, 1.0630 in Fillet Radius 2.000 mm, 0.0787 in Series 13 Manufacturer UPC Number 4547359256789 Weight 2.635 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1216 Self-Aligning Ball Bearing - Straight Bore, 80 mm ID, 140 mm OD, 26 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 3.1496 in, 80.000 mm Outside Diameter 140.000 mm, 5.5118 in Overall Width 26.000 mm, 1.0236 in Closure Type Open Cage Type Pressed Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 9000 lbf Seal Type None Static Load Capacity 3800 lbf Precision Rating Class 0 Maximum RPM 5000 rpm Bearing Material High Carbon Chrome Steel Cage Material Steel Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 1.0236 in; 26.000 mm Inner Ring Width 26.000 mm, 1.0236 in Fillet Radius 2.000 mm, 0.0787 in Manufacturer UPC Number 4547359255850 Weight 3.629 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1205 Self-Aligning Ball Bearing - Straight Bore, 25 mm ID, 52 mm OD, 15 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 0.9843 in, 25.000 mm Outside Diameter 52.000 mm, 2.0472 in Overall Width 15.000 mm, 0.5906 in Closure Type Open Cage Type Fiber Glass Reinforced Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 2740 lbf Seal Type None Static Load Capacity 740 lbf Precision Rating Class 0 Maximum RPM 14000 rpm Bearing Material High Carbon Chrome Steel Cage Material Nylon Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.5906 in; 15.000 mm Inner Ring Width 15.000 mm, 0.5906 in Fillet Radius 1.000 mm, 0.0394 in Series 12 Manufacturer UPC Number 4547359254822 Weight 0.291 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1201 Self-Aligning Ball Bearing - Straight Bore, 12 mm ID, 32 mm OD, 10 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 0.4724 in, 12.000 mm Outside Diameter 1.2598 in, 32.000 mm Overall Width 0.3937 in, 10.000 mm Closure Type Open Cage Type Fiber Glass Reinforced Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 1280 lbf Seal Type None Static Load Capacity 286 lbf Precision Rating Class 0 Maximum RPM 26000 rpm Bearing Material High Carbon Chrome Steel Cage Material Nylon Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.3937 in; 10.000 mm Inner Ring Width 0.3937 in, 10.000 mm Fillet Radius 0.600 mm, 0.0236 in Series 12 Manufacturer UPC Number 4547359512953 Weight 0.090 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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NTN 1200 Self-Aligning Ball Bearing - Straight Bore, 10 mm ID, 30 mm OD, 9 mm Width, Open, CN SPECIFICATIONS Bore Type Cylindrical Bore Diameter 0.3937 in, 10.000 mm Outside Diameter 1.1811 in, 30.000 mm Overall Width 9.000 mm, 0.3543 in Closure Type Open Cage Type Fiber Glass Reinforced Internal Clearance CN Operating Temperature Range -40 to 250 ºF Seal Material None Dynamic Load Capacity 1250 lbf Seal Type None Static Load Capacity 268 lbf Precision Rating Class 0 Maximum RPM 28000 rpm Bearing Material High Carbon Chrome Steel Cage Material Nylon Finish/Coating Uncoated Harmonization Code 8482.10.5060 Outer Ring Width 0.3543 in; 9.000 mm Inner Ring Width 9.000 mm, 0.3543 in Fillet Radius 0.600 mm, 0.0236 in Series 12 Manufacturer UPC Number 4547359512946 Weight 0.071 lb 1. Design features and characteristics The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads. It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.   2. Standard cage type All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.Self-Aligning Ball BearingsIt is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications. Table 1 Standard cage types of spherical ball bearings     3. Ball protrusion Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2. 4.  Allowable misalignment angle The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.Normal load ....................... 1/15   5.  Precautions for using self-aligning ball bearings Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.Please consider using self-aligning roller bearings when a large axial load is to be applied.

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Item # d D B r Static Load Rating Dynamic Load Rating 16028 5.5118 in 140.000 mm 8.2677 in 210.000 mm 0.8661 in 22.000 mm 0.0433 in 1.100 mm 19100 lbf 85000 N 85.00 kN 20450 lbf 91000 N 91.00 kN 1. Design features and characteristics Deep groove ball bearings are very widely used. A deep groove is formed on the inner and outer ring of the bearing enabling the bearing to sustain radial and axial loads in either direction as well as the complex loads which result from the combination of these forces. Deep groove ball bearings are suitable for high speed applications. When two or more deep groove ball bearings are used in combination and mounted adjacent to each other a duplex set (D2) should be used. Duplex bearings (D2) utilize controlled tolerances to more evenly distribute the loading between the individual bearing rows which improves the overall performance of the assembly. In addition to unsealed and unlubricated “open” bearings, NTN provides deep groove ball bearings that are pre-lubricated with grease and enclosed by seals or shields. See section “11. Lubrication” for a list of some of the greases which can be used. Table 1 shows the construction and special characteristics of various sealed deep groove ball bearings.  Types and codes N Shielded type Shielded type Non-contact type ZZ Non-contact type LLB Contact type LLU Low torque type LLH Construction Metal shield plate is affixed to the outside ring; the inner ring incorporates a V-groove and labyrinth clearance. The outer ring incorporates synthetic rubber molded to a steel plate; seal edge is aligned with V-groove along inner ring surface with labyrinth clearance The outer ring incorporates synthetic rubber molded to a steel plate; seal edge contacts V-groove along inner ring surface Basic construction is the same as LLU type, but a specially designed lip on the edge of the seal prevents foreign matter penetration; low torque construction. Torque Small Small Higher Medium Dust proofing Good Better than ZZ-type Excellent Much better than LLB-type Water proofing Poor Poor Very good Good High speed capacity Same as open type Same as open type Limited by contact seals Much better than LLU-type Allowable temp. range Depends on lubricant −25 to 120°C −25 to 110°C −25 to 120°C

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Item # d D B r Static Load Rating Dynamic Load Rating 16026 5.1181 in 130.000 mm 7.8740 in 200.000 mm 0.8661 in 22.000 mm 0.0433 in 1.100 mm 17870 lbf 79500 N 79.50 kN 19890 lbf 88500 N 88.50 kN 1. Design features and characteristics Deep groove ball bearings are very widely used. A deep groove is formed on the inner and outer ring of the bearing enabling the bearing to sustain radial and axial loads in either direction as well as the complex loads which result from the combination of these forces. Deep groove ball bearings are suitable for high speed applications. When two or more deep groove ball bearings are used in combination and mounted adjacent to each other a duplex set (D2) should be used. Duplex bearings (D2) utilize controlled tolerances to more evenly distribute the loading between the individual bearing rows which improves the overall performance of the assembly. In addition to unsealed and unlubricated “open” bearings, NTN provides deep groove ball bearings that are pre-lubricated with grease and enclosed by seals or shields. See section “11. Lubrication” for a list of some of the greases which can be used. Table 1 shows the construction and special characteristics of various sealed deep groove ball bearings.  Types and codes N Shielded type Shielded type Non-contact type ZZ Non-contact type LLB Contact type LLU Low torque type LLH Construction Metal shield plate is affixed to the outside ring; the inner ring incorporates a V-groove and labyrinth clearance. The outer ring incorporates synthetic rubber molded to a steel plate; seal edge is aligned with V-groove along inner ring surface with labyrinth clearance The outer ring incorporates synthetic rubber molded to a steel plate; seal edge contacts V-groove along inner ring surface Basic construction is the same as LLU type, but a specially designed lip on the edge of the seal prevents foreign matter penetration; low torque construction. Torque Small Small Higher Medium Dust proofing Good Better than ZZ-type Excellent Much better than LLB-type Water proofing Poor Poor Very good Good High speed capacity Same as open type Same as open type Limited by contact seals Much better than LLU-type Allowable temp. range Depends on lubricant −25 to 120°C −25 to 110°C −25 to 120°C

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Item # d D B r Static Load Rating Dynamic Load Rating 16024 4.7244 in 120.000 mm 7.0866 in 180.000 mm 0.7480 in 19.000 mm 0.0394 in 1.000 mm 14270 lbf 63500 N 63.50 kN 15730 lbf 70000 N 70.00 kN 1. Design features and characteristics Deep groove ball bearings are very widely used. A deep groove is formed on the inner and outer ring of the bearing enabling the bearing to sustain radial and axial loads in either direction as well as the complex loads which result from the combination of these forces. Deep groove ball bearings are suitable for high speed applications. When two or more deep groove ball bearings are used in combination and mounted adjacent to each other a duplex set (D2) should be used. Duplex bearings (D2) utilize controlled tolerances to more evenly distribute the loading between the individual bearing rows which improves the overall performance of the assembly. In addition to unsealed and unlubricated “open” bearings, NTN provides deep groove ball bearings that are pre-lubricated with grease and enclosed by seals or shields. See section “11. Lubrication” for a list of some of the greases which can be used. Table 1 shows the construction and special characteristics of various sealed deep groove ball bearings.  Types and codes N Shielded type Shielded type Non-contact type ZZ Non-contact type LLB Contact type LLU Low torque type LLH Construction Metal shield plate is affixed to the outside ring; the inner ring incorporates a V-groove and labyrinth clearance. The outer ring incorporates synthetic rubber molded to a steel plate; seal edge is aligned with V-groove along inner ring surface with labyrinth clearance The outer ring incorporates synthetic rubber molded to a steel plate; seal edge contacts V-groove along inner ring surface Basic construction is the same as LLU type, but a specially designed lip on the edge of the seal prevents foreign matter penetration; low torque construction. Torque Small Small Higher Medium Dust proofing Good Better than ZZ-type Excellent Much better than LLB-type Water proofing Poor Poor Very good Good High speed capacity Same as open type Same as open type Limited by contact seals Much better than LLU-type Allowable temp. range Depends on lubricant −25 to 120°C −25 to 110°C −25 to 120°C

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