NTN

Item # d D B r Static Load Rating Dynamic Load Rating 2311 2.1654 in 55.000 mm 4.7244 in 120.000 mm 1.6929 in 43.000 mm 0.0787 in 2.000 mm 5400 lbf 24000 N 24.00 kN 17200 lbf 76500 N 76.50 kN 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 2310 1.9685 in 50.000 mm 4.3307 in 110.000 mm 1.5748 in 40.000 mm 0.0787 in 2.000 mm 4550 lbf 20200 N 20.20 kN 14600 lbf 65000 N 65.00 kN 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 2309 1.7717 in 45.000 mm 3.9370 in 100.000 mm 1.4173 in 36.000 mm 0.0591 in 1.500 mm 3750 lbf 16700 N 16.70 kN 12400 lbf 55000 N 55.00 kN 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 2308 1.5748 in 40.000 mm 3.5433 in 90.000 mm 1.2992 in 33.000 mm 0.0591 in 1.500 mm 3050 lbf 13500 N 13.50 kN 10200 lbf 45500 N 45.50 kN 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 2307 1.3780 in 35.000 mm 3.1496 in 80.000 mm 1.2205 in 31.000 mm 0.0591 in 1.500 mm 2540 lbf 11300 N 11.30 kN 9000 lbf 40000 N 40.00 kN 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 2306 1.1811 in 30.000 mm 2.8346 in 72.000 mm 1.0630 in 27.000 mm 0.0433 in 1.100 mm 1970 lbf 8750 N 8.75 kN 7200 lbf 32000 N 32.00 kN 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 2305 0.9843 in 25.000 mm 2.4409 in 62.000 mm 0.9449 in 24.000 mm 0.0433 in 1.100 mm 1480 lbf 6600 N 6.60 kN 5600 lbf 24900 N 24.90 kN 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 2304 0.7874 in 20.000 mm 2.0472 in 52.000 mm 0.8268 in 21.000 mm 0.0433 in 1.100 mm 1060 lbf 4700 N 4.70 kN 4150 lbf 18500 N 18.50 kN 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 2303 0.6693 in 17.000 mm 1.8504 in 47.000 mm 0.7480 in 19.000 mm 0.0394 in 1.000 mm 800 lbf 3550 N 3.55 kN 3300 lbf 14700 N 14.70 kN 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 2302 0.5906 in 15.000 mm 1.6535 in 42.000 mm 0.6693 in 17.000 mm 0.0394 in 1.000 mm 655 lbf 2910 N 2.91 kN 2770 lbf 12300 N 12.30 kN 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 2301 0.4724 in 12.000 mm 1.4567 in 37.000 mm 0.6693 in 17.000 mm 0.0394 in 1.000 mm 615 lbf 2730 N 2.73 kN 272 lbf 1210 N 1.21 kN 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 2300 0.3937 in 10.000 mm 1.3780 in 35.000 mm 0.6693 in 17.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 2070 lbf 9200 N 9.20 kN 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 2220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.8110 in 46.000 mm 0.0827 in 2.100 mm 8650 lbf 38500 N 38.50 kN 21200 lbf 94500 N 94.50 kN 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 2219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.6929 in 43.000 mm 0.0827 in 2.100 mm 7750 lbf 34500 N 34.50 kN 18900 lbf 84000 N 84.00 kN 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 2218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.5748 in 40.000 mm 0.0787 in 2.000 mm 6450 lbf 28700 N 28.70 kN 15800 lbf 70500 N 70.50 kN 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 2217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.4173 in 36.000 mm 0.0787 in 2.000 mm 5300 lbf 23600 N 23.60 kN 13200 lbf 58500 N 58.50 kN 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 2216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.2992 in 33.000 mm 0.0787 in 2.000 mm 4450 lbf 19900 N 19.90 kN 11000 lbf 49000 N 49.00 kN 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 2215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 1.2205 in 31.000 mm 0.0591 in 1.500 mm 4000 lbf 17800 N 17.80 kN 10000 lbf 44500 N 44.50 kN 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 2214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 1.2205 in 31.000 mm 0.0591 in 1.500 mm 3850 lbf 17100 N 17.10 kN 9900 lbf 44000 N 44.00 kN 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 2213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 1.2205 in 31.000 mm 0.0591 in 1.500 mm 3700 lbf 16400 N 16.40 kN 9800 lbf 43500 N 43.50 kN 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 51412 2.3622 in 60.000 mm 5.1181 in 130.000 mm 2.0079 in 51.000 mm 0.0591 in 1.500 mm 98000 lbf 435000 N 435.00 kN 48000 lbf 214000 N 214.00 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 51411 2.1654 in 55.000 mm 4.7244 in 120.000 mm 1.8898 in 48.000 mm 0.0591 in 1.500 mm 81000 lbf 360000 N 360.00 kN 40000 lbf 178000 N 178.00 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 51410 1.9685 in 50.000 mm 4.3307 in 110.000 mm 1.6929 in 43.000 mm 0.0591 in 1.500 mm 63500 lbf 283000 N 283.00 kN 3350 lbf 14800 N 14.80 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 51409 1.7717 in 45.000 mm 3.9370 in 100.000 mm 1.5354 in 39.000 mm 0.0433 in 1.100 mm 54500 lbf 242000 N 242.00 kN 29200 lbf 130000 N 130.00 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 51408 1.5748 in 40.000 mm 3.5433 in 90.000 mm 1.4173 in 36.000 mm 0.0433 in 1.100 mm 46000 lbf 205000 N 205.00 kN 25200 lbf 112000 N 112.00 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 51407 1.3780 in 35.000 mm 3.1496 in 80.000 mm 1.2598 in 32.000 mm 0.0433 in 1.100 mm 35000 lbf 155000 N 155.00 kN 19600 lbf 87000 N 87.00 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 51406 1.1811 in 30.000 mm 2.7559 in 70.000 mm 1.1024 in 28.000 mm 0.0394 in 1.000 mm 28300 lbf 126000 N 126.00 kN 16300 lbf 72500 N 72.50 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 51405 0.9843 in 25.000 mm 2.3622 in 60.000 mm 0.9449 in 24.000 mm 0.0394 in 1.000 mm 20100 lbf 89500 N 89.50 kN 12500 lbf 55500 N 55.50 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 51332 6.2992 in 160.000 mm 10.6299 in 270.000 mm 3.4252 in 87.000 mm 0.1181 in 3.000 mm 330000 lbf 1470000 N 1470.00 kN 101000 lbf 450000 N 450.00 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 51330 5.9055 in 150.000 mm 9.8425 in 250.000 mm 3.1496 in 80.000 mm 0.0827 in 2.100 mm 254000 lbf 1130000 N 1130.00 kN 81000 lbf 360000 N 360.00 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 51328 5.5118 in 140.000 mm 9.4488 in 240.000 mm 3.1496 in 80.000 mm 0.0827 in 2.100 mm 236000 lbf 1050000 N 1050.00 kN 78500 lbf 350000 N 350.00 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 51326 5.1181 in 130.000 mm 8.8583 in 225.000 mm 2.9528 in 75.000 mm 0.0827 in 2.100 mm 216000 lbf 960000 N 960.00 kN 74000 lbf 330000 N 330.00 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 51324 4.7244 in 120.000 mm 8.2677 in 210.000 mm 2.7559 in 70.000 mm 0.0827 in 2.100 mm 181000 lbf 805000 N 805.00 kN 66500 lbf 296000 N 296.00 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 1200 0.3937 in 10.000 mm 1.1811 in 30.000 mm 0.3543 in 9.000 mm 0.0236 in 0.600 mm 268 lbf 1190 N 1.19 kN 1250 lbf 5550 N 5.55 kN 1201 0.4724 in 12.000 mm 1.2598 in 32.000 mm 0.3937 in 10.000 mm 0.0236 in 0.600 mm 286 lbf 1270 N 1.27 kN 1280 lbf 5700 N 5.70 kN 1202 0.5906 in 15.000 mm 1.3780 in 35.000 mm 0.4331 in 11.000 mm 0.0236 in 0.600 mm 395 lbf 1750 N 1.75 kN 1710 lbf 7600 N 7.60 kN 1203 0.6693 in 17.000 mm 1.5748 in 40.000 mm 0.4724 in 12.000 mm 0.0236 in 0.600 mm 450 lbf 2010 N 2.01 kN 1800 lbf 8000 N 8.00 kN 1204 0.7874 in 20.000 mm 1.8504 in 47.000 mm 0.5512 in 14.000 mm 0.0394 in 1.000 mm 585 lbf 2610 N 2.61 kN 2250 lbf 10000 N 10.00 kN 1205 0.9843 in 25.000 mm 2.0472 in 52.000 mm 0.5906 in 15.000 mm 0.0394 in 1.000 mm 740 lbf 3300 N 3.30 kN 2740 lbf 12200 N 12.20 kN 1206 1.1811 in 30.000 mm 2.4409 in 62.000 mm 0.6299 in 16.000 mm 0.0394 in 1.000 mm 1050 lbf 4650 N 4.65 kN 3550 lbf 15800 N 15.80 kN 1207 1.3780 in 35.000 mm 2.8346 in 72.000 mm 0.6693 in 17.000 mm 0.0433 in 1.100 mm 1150 lbf 5100 N 5.10 kN 3550 lbf 15900 N 15.90 kN 1208 1.5748 in 40.000 mm 3.1496 in 80.000 mm 0.7087 in 18.000 mm 0.0433 in 1.100 mm 1460 lbf 6500 N 6.50 kN 4350 lbf 19300 N 19.30 kN 1209 1.7717 in 45.000 mm 3.3465 in 85.000 mm 0.7480 in 19.000 mm 0.0433 in 1.100 mm 1650 lbf 7350 N 7.35 kN 4950 lbf 22000 N 22.00 kN 1210 1.9685 in 50.000 mm 3.5433 in 90.000 mm 0.7874 in 20.000 mm 0.0433 in 1.100 mm 1820 lbf 8100 N 8.10 kN 5150 lbf 22800 N 22.80 kN 1211 2.1654 in 55.000 mm 3.9370 in 100.000 mm 0.8268 in 21.000 mm 0.0591 in 1.500 mm 2250 lbf 10000 N 10.00 kN 6050 lbf 26900 N 26.90 kN 1212 2.3622 in 60.000 mm 4.3307 in 110.000 mm 0.8661 in 22.000 mm 0.0591 in 1.500 mm 2590 lbf 11500 N 11.50 kN 6850 lbf 30500 N 30.50 kN 1213 2.5591 in 65.000 mm 4.7244 in 120.000 mm 0.9055 in 23.000 mm 0.0591 in 1.500 mm 2810 lbf 12500 N 12.50 kN 6950 lbf 31000 N 31.00 kN 1214 2.7559 in 70.000 mm 4.9213 in 125.000 mm 0.9449 in 24.000 mm 0.0591 in 1.500 mm 3100 lbf 13800 N 13.80 kN 7850 lbf 35000 N 35.00 kN 1215 2.9528 in 75.000 mm 5.1181 in 130.000 mm 0.9843 in 25.000 mm 0.0591 in 1.500 mm 3550 lbf 15700 N 15.70 kN 8750 lbf 39000 N 39.00 kN 1216 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.0236 in 26.000 mm 0.0787 in 2.000 mm 3800 lbf 17000 N 17.00 kN 9000 lbf 40000 N 40.00 kN 1217 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.1024 in 28.000 mm 0.0800 in 2.032 mm 4700 lbf 20800 N 20.80 kN 11100 lbf 49500 N 49.50 kN 1218 3.5433 in 90.000 mm 6.2992 in 160.000 mm 1.1811 in 30.000 mm 0.0787 in 2.000 mm 5300 lbf 23500 N 23.50 kN 12900 lbf 57500 N 57.50 kN 1219 3.7402 in 95.000 mm 6.6929 in 170.000 mm 1.2598 in 32.000 mm 0.0827 in 2.100 mm 6100 lbf 27100 N 27.10 kN 14400 lbf 64000 N 64.00 kN 1220 3.9370 in 100.000 mm 7.0866 in 180.000 mm 1.3386 in 34.000 mm 0.0827 in 2.100 mm 6700 lbf 29700 N 29.70 kN 15600 lbf 69500 N 69.50 kN 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 51322 4.3307 in 110.000 mm 7.4803 in 190.000 mm 2.4803 in 63.000 mm 0.0787 in 2.000 mm 158000 lbf 705000 N 705.00 kN 60000 lbf 267000 N 267.00 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 51320 3.9370 in 100.000 mm 6.6929 in 170.000 mm 2.1654 in 55.000 mm 0.0591 in 1.500 mm 134000 lbf 595000 N 595.00 kN 53500 lbf 237000 N 237.00 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 51318 3.5433 in 90.000 mm 6.1024 in 155.000 mm 1.9685 in 50.000 mm 0.0591 in 1.500 mm 110000 lbf 490000 N 490.00 kN 44500 lbf 198000 N 198.00 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 51317 3.3465 in 85.000 mm 5.9055 in 150.000 mm 1.9291 in 49.000 mm 0.0591 in 1.500 mm 110000 lbf 490000 N 490.00 kN 45000 lbf 201000 N 201.00 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 51316 3.1496 in 80.000 mm 5.5118 in 140.000 mm 1.7323 in 44.000 mm 0.0591 in 1.500 mm 95500 lbf 425000 N 425.00 kN 39500 lbf 176000 N 176.00 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 51314 2.7559 in 70.000 mm 4.9213 in 125.000 mm 1.5748 in 40.000 mm 0.0433 in 1.100 mm 76500 lbf 340000 N 340.00 kN 33500 lbf 148000 N 148.00 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 51313 2.5591 in 65.000 mm 4.5276 in 115.000 mm 1.4173 in 36.000 mm 0.0433 in 1.100 mm 64500 lbf 287000 N 287.00 kN 28800 lbf 128000 N 128.00 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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