NSK

NSK Deep Groove Ball Bearings 6914 ,Single-Row  D=70 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6914 70 100 16 1 23.7 21.2 6300 7500 16.3 0.349 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6913 ,Single-Row  D=65 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6913 65 90 13 1 17.4 16.1 7100 8500 16.6 0.218 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6911ZZ ,Single-Row  D=55   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6911ZZ 55 80 13 1 16 13.3 8000 　 16.2 0.189 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6910ZZ ,Single-Row  D=50   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6910ZZ 50 72 12 0.6 14.5 11.7 9000 　 16.1 0.135 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6909ZZ ,Single-Row  D=45   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6909ZZ 45 68 12 0.6 14.1 10.9 9500 　 15.9 0.126 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6908ZZ ,Single-Row  D=40   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6908ZZ 40 62 12 0.6 13.7 10 11000 　 15.7 0.112 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6907ZZ ,Single-Row  D=35   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6907ZZ 35 55 10 0.6 10.6 7.25 12000 　 15.5 0.075 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6906ZZ ,Single-Row  D=30   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6906ZZ 30 47 9 0.3 7.25 5 14000 　 15.8 0.052 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6905ZZ ,Single-Row  D=25   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6905ZZ 25 42 9 0.3 7.05 4.55 16000 　 15.4 0.042   DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6904ZZ ,Single-Row  D=20   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6904ZZ 20 37 9 0.3 6.4 3.7 19000 　 14.7 0.037 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6903ZZ ,Single-Row  D=17   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6903ZZ 17 30 7 0.3 4.6 2.55 24000 　 14.7 0.017 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6902ZZ ,Single-Row  D=15   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6902ZZ 15 28 7 0.3 4.35 2.26 26000 　 14.3 0.015 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6901ZZ ,Single-Row  D=12   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6901ZZ 12 24 6 0.3 2.89 1.46 30000 　 14.5 0.01 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6912DDU ,Single-Row  D=60 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6912DDU 60 85 13 1 19.4 16.3 4300 　 16.2 0.192   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6911DDU ,Single-Row  D=55 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6911DDU 55 80 13 1 16 13.3 4500 　 16.2 0.189   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6910DDU ,Single-Row  D=50 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6910DDU 50 72 12 0.6 14.5 11.7 5300 　 16.1 0.135   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6909DDU ,Single-Row  D=45 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6909DDU 45 68 12 0.6 14.1 10.9 5600 　 15.9 0.126   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6908DDU ,Single-Row  D=40 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6908DDU 40 62 12 0.6 13.7 10 6300 　 15.7 0.112   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6907DDU ,Single-Row  D=35 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6907DDU 35 55 10 0.6 10.6 7.25 7500 　 15.5 0.075   DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6906DDU ,Single-Row  D=30 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6906DDU 30 47 9 0.3 7.25 5 8500 　 15.8 0.052 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6905DDU ,Single-Row  D=25   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6905DDU 25 42 9 0.3 7.05 4.55 10000 　 15.4 0.042   DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6904DDU ,Single-Row  D=20   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6904DDU 20 37 9 0.3 6.4 3.7 12000 　 14.7 0.037   DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6903DDU ,Single-Row  D=17 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6903DDU 17 30 7 0.3 4.6 2.55 15000 　 14.7 0.017   DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6902DD ,Single-Row  D=15 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6902DD 15 28 7 0.3 4.35 2.26 17000 　 14.3 0.015 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6912VV ,Single-Row  D=60 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6912VV 60 85 13 1 19.4 16.3 7500 　 16.2 0.192 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6911VV ,Single-Row  D=55 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6911VV 55 80 13 1 16 13.3 8000 　 16.2 0.189 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6910VV ,Single-Row  D=50 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6910VV 50 72 12 0.6 14.5 11.7 9000 　 16.1 0.135 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6909VV ,Single-Row  D=45 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6909VV 45 68 12 0.6 14.1 10.9 9500 　 15.9 0.126 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6908VV ,Single-Row  D=40 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6908VV 40 62 12 0.6 13.7 10 11000 　 15.7 0.112 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6907VV ,Single-Row  D=35 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6907VV 35 55 10 0.6 10.6 7.25 12000 　 15.5 0.075 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6906VV ,Single-Row  D=30 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6906VV 30 47 9 0.3 7.25 5 14000 　 15.8 0.052 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6905VV ,Single-Row  D=25 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6905VV 25 42 9 0.3 7.05 4.55 16000 　 15.4 0.042 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6904VV ,Single-Row  D=20 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6904VV 20 37 9 0.3 6.4 3.7 19000 　 14.7 0.037 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6903VV ,Single-Row  D=17 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6903VV 17 30 7 0.3 4.6 2.55 24000 　 14.7 0.017 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6901VV ,Single-Row  D=12 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6901VV 12 24 6 0.3 2.89 1.46 30000 　 14.5 0.01 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6912N , Single-Row With a Snap Ring Groove D=60.0 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6912N 60 85 13 1 19.4 16.3 7500 9000 16.2 0.192 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6911N , Single-Row With a Snap Ring Groove D=55.0 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6911N 55 80 13 1 16 13.3 8000 9500 16.2 0.189 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6910N , Single-Row With a Snap Ring Groove D=50.0 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6910N 50 72 12 0.6 14.5 11.7 9000 11000 16.1 0.135 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6909N , Single-Row With a Snap Ring Groove D=45.0 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6909N 45 68 12 0.6 14.1 10.9 9500 12000 15.9 0.126 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6908N , Single-Row With a Snap Ring Groove D=40.0 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6908N 40 62 12 0.6 13.7 10 11000 13000 15.7 0.112 DESIGN, TYPES, AND FEATURES    SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6912 ,Single-Row  D=60 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6912 60 85 13 1 19.4 16.3 7500 9000 16.2 0.192 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6911 ,Single-Row  D=55 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6911 55 80 13 1 16 13.3 8000 9500 16.2 0.189 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6910 ,Single-Row  D=50 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6910 50 72 12 0.6 14.5 11.7 9000 11000 16.1 0.135 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6909 ,Single-Row  D=45 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6909 45 68 12 0.6 14.1 10.9 9500 12000 15.9 0.126 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6908 ,Single-Row  D=40 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6908 40 62 12 0.6 13.7 10 11000 13000 15.7 0.112 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6907 ,Single-Row  D=35 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6907 35 55 10 0.6 10.6 7.25 12000 15000 15.5 0.075 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6906 ,Single-Row  D=30 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6906 30 47 9 0.3 7.25 5 14000 17000 15.8 0.052 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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NSK Deep Groove Ball Bearings 6905 ,Single-Row  D=25 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Factor f0 Mass (kg) approx. d D B r min. Cr C0r Grease Oil 6905 25 42 9 0.3 7.05 4.55 16000 19000 15.4 0.042 DESIGN, TYPES, AND FEATURES  SINGLE-ROW DEEP GROOVE BALL BEARINGS  Single-row deep groove ball bearings are classified into the types shown below. The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1. Table 1 Features of Sealed Ball Bearings  Type  Shielded (ZZ Type) Rubber Non-Contact Seal (VV Type)  Rubber Contact Seal (DDU Type)  Torque Low Low Higher than ZZ and VV types  due to contact seal   Speed capability  Good Good Limited by contact seals  Grease-sealing effectiveness  Good Better than ZZ type  Slightly better than VV type  Dust resistance Good Better than ZZ type (usable in moderately dusty environments) Best (usable even in very dusty environments)  Water resistance Not suitable Not suitable Good (usable even if fluid is splashed on bearing)   Operating temperature –10 to +110 °C –10 to +110 °C –10 to +110 °C   Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended.      □Formulation of Bearing Designations Single-row deep groove ball bearings ①Bearing type 6 : Single-row deep groove ball bearings ②Dimension Series 2 : 02 Series, 3 : 03 Series, 9 : 19 Series, 0 : 10 Series ③Bore number Less than 03, Bearing bore 00 : 10mm, 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore bore number X 5 (mm) ④Seals/shields   ZZ : Shield on both sides, DDU: Rubber contact seal on both sides, VV: Rubber non-contact seal on both sides, Z: Shield on one side, DU: Rubber contact seal on one side V:Rubber non-contact seal on one side ⑤Internal clearance Omitted : CN clearance＊1, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CM : For electric motors＊1 ⑥NSKHPS designation & : NSKHPSTM Bearings ⑦Grease designation＊2 NS7 : NS HI-LUBE ＊1 CM clearance may be used instead of CN clearance (the reverse is not possible). ＊2 The grease designation is required when seals/shields are used on both sides.  NSKHPS™ Deep Groove Ball Bearings Note (1) The above temperature range applies to standard bearings. By using cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. Compared with conventional bearings: ● Improved reliabilityBearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.● New product lineupThe standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.

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