BEARING / FA

NSK Tapered Roller Bearings, Single-Row Metric Design HR30310J ,D=50   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30310J 50 110 29.25 27 23 2.5 2 130 148 3400 4800 2FB 0.35 1.7 0.96 1.28   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30309J ,D=45   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30309J 45 100 27.25 25 22 2 1.5 112 127 3800 5300 2FB 0.35 1.7 0.96 1.01   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30308J ,D=40   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30308J 40 90 25.25 23 20 2 1.5 90.5 101 4300 5600 2FB 0.35 1.7 0.96 0.758   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30307J ,D=35   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30307J 35 80 22.75 21 18 2 1.5 76 79 4800 6700 2FB 0.32 1.9 1.1 0.538   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30306J ,D=30   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30306J 30 72 20.75 19 16 1.5 1.5 59.5 60 5300 7500 2FB 0.32 1.9 1.1 0.403   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30305J ,D=25   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30305J 25 62 18.25 17 15 1.5 1.5 47.5 46 6300 8500 2FB 0.3 2 1.1 0.27   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30304J ,D=20   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30304J 20 52 16.25 15 13 1.5 1.5 35 33.5 7500 10000 2FB 0.3 2 1.1 0.172   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30303J ,D=17   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30303J 17 47 15.25 14 12 1 1 29.2 26.7 8500 12000 2FB 0.29 2.1 1.2 0.134   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30302J ,D=15   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30302J 15 42 14.25 13 11 1 1 23.6 21.1 9500 13000 2FB 0.29 2.1 1.2 0.098   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30240J ,D=200   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30240J 200 360 64 58 48 5 4 825 1180 950 1300 4GB 0.44 1.4 0.76 25.1   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30236J ,D=180   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30236J 180 320 57 52 43 5 4 650 930 1100 1400 4GB 0.45 1.3 0.73 17.8   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30234J ,D=170   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30234J 170 310 57 52 43 5 4 630 885 1100 1500 4GB 0.44 1.4 0.76 29.2   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24136CAME4C3, D=180   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24136CAME4C3 180 300 118 3 1490 2040 1100 2000 0 1200 0.37 2.7 1.8 1.8 33.1   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24132CAMK30E4C3, D=160   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24132CAMK30E4C3 160 270 109 2.1 1240 1670 1300 2200 1000 1300 0.39 2.6 1.7 1.7 25.4   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24132CAME4C3, D=160   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24132CAME4C3 160 270 109 2.1 1240 1670 1300 2200 1000 1300 0.39 2.6 1.7 1.7 25.4   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24128CAME4C3, D=140   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24128CAME4C3 140 225 85 2.1 835 1160 1600 2600 1200 1600 0.37 2.7 1.8 1.8 13   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24120CAME4C3, D=100   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24120CAME4C3 100 165 65 2 345 535 2400 0 1700 2200 0.35 2.9 1.9 1.9 5.42 DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24144CAME4 ,D=220   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24144CAME4 220 370 150 4 2250 3200 850 1600 0 950 0.39 2.6 1.7 1.7 66.7 DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24140CAME4 ,D=200   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24140CAME4 200 340 140 3 1960 2660 950 1800 0 1000 0.39 2.5 1.7 1.7 51.3   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24138CAME4 ,D=190   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24138CAME4 190 320 128 3 1710 2330 1000 1900 0 1100 0.4 2.5 1.7 1.6 41.5   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24136CAME4 ,D=180   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24136CAME4 180 300 118 3 1490 2040 1100 2000 0 1200 0.37 2.7 1.8 1.8 33.1   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24134CAME4 ,D=170   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24134CAME4 170 280 109 2.1 1280 1770 1200 2200 1000 1300 0.38 2.7 1.8 1.7 26.6   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24132CAME4 ,D=160   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24132CAME4 160 270 109 2.1 1240 1670 1300 2200 1000 1300 0.39 2.6 1.7 1.7 25.4   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24130CAME4 ,D=150   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24130CAME4 150 250 100 2.1 1070 1450 1400 2400 1100 1400 0.38 2.6 1.8 1.7 19.8   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24128CAME4 ,D=140   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24128CAME4 140 225 85 2.1 835 1160 1600 2600 1200 1600 0.37 2.7 1.8 1.8 13   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24126CAME4 ,D=130   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24126CAME4 130 210 80 2 735 1010 1800 2800 1300 1700 0.37 2.7 1.8 1.8 10.7   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24124CAME4 ,D=120   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24124CAME4 120 200 80 2 695 905 2000 3000 1400 1800 0.37 2.7 1.8 1.8 10   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24122CAME4 ,D=110   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24122CAME4 110 180 69 2 575 750 2200 3400 1600 2000 0.36 2.8 1.9 1.8 6.84   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24120CAME4 ,D=100   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24120CAME4 100 165 65 2 345 535 2400 0 1700 2200 0.35 2.9 1.9 1.9 5.42 DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24048CAME4 ,D=240   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24048CAME4 240 360 118 3 1730 2730 1100 1800 710 950 0.3 3.3 2.2 2.2 43.4   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24044CAME4 ,D=220   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24044CAME4 220 340 118 3 1640 2490 1200 1900 0 1000 0.32 3.2 2.1 2.1 40.5   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24040CAME4 ,D=200   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24040CAME4 200 310 109 2.1 1420 2120 1300 2000 0 1100 0.33 3 2 2 30.4   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24038CAME4 ,D=190   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24038CAME4 190 290 100 2.1 1220 1840 1400 2200 0 1200 0.32 3.1 2.1 2 24   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24036CAME4 ,D=180   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24036CAME4 180 280 100 2.1 1210 1750 1500 2200 0 1200 0.32 3.1 2.1 2 22.7   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Spherical Roller Bearings , Cylindrical Bore Bearings 24034CAME4 ,D=170   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) Constant e Axial Load Factors Mass (kg) approx. d D B r min. Cr C0r Thermal Reference Mechanical Grease Oil Y2 Y3 Y0 24034CAME4 170 260 90 2.1 1030 1520 1600 2400 1000 1300 0.31 3.2 2.2 2.1 17.3   DESIGN, TYPES, AND FEATURES Various types of high load capacity spherical roller bearings are available. Types EA, C and CD have pressed-steel cages, and type CA has machined-brass cages. EA-type bearings listed here are classified as NSKHPSTM bearings, which offer particularly high load-carrying capacity, high limiting speeds, and superior performance under high-temperature operating conditions up to 200 °C. An oil groove and holes are located in the outer ring to supply lubricant, and the bearing numbers are suffixed with E4. To use bearings with oil grooves and holes, an oil groove should be located in the housing bore since depth for the groove in the bearing is limited. The dimensions of the oil groove and number of holes present are listed in Tables 1 and 2. When bearings with a hole for a locking pin to prevent outer ring rotation are required, please contact NSK. □Formulation of Bearing Designations Spherical Roller Bearings　　Example:   ①Bearing Series     239, 230, 240, 231, 241, 222, 232, 213, 223 : Spherical roller bearings ②Bore number   Bore number indicates bore diameter. Bore number X 5 (mm) ③Internal design      EA, CA : High load capacity ④Cage  M : Machined-brass cage (for CA Design)Omitted: Pressed-steel cage (for EA Design) ⑤⑥Ring design  K : Tapered bore of inner ring (taper 1 : 12)K30 : Tapered bore of inner ring (taper 1 : 30)E4 : Lubricating groove in outside surface and holes in outer ring ⑦Internal clearance     Omitted : CN clearance, C3 : Clearance greater than CN,C4 : Clearance greater than C3, C5 : Clearance greater than C4 ⑧Tolerance class      Omitted : ISO Normal, P6 : ISO Class 6, P5 : ISO Class 5, P4 : ISO Class 4 ⑨Special specification   S11 ; Dimensional stabilizing treatment: working temperature under 200 °C(omitted for EA design) ⑩NSKHPSTM     *H* : NSKHPSTM designationTolerance Class : ISO Normal

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NSK Tapered Roller Bearings, Single-Row Metric Design 30330 ,D=150   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 30330 150 320 72 65 55 5 4 690 860 1100 1500 - 0.36 1.7 0.92 24.2   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design 30328 ,D=140   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 30328 140 300 67.75 62 53 5 4 600 740 1200 1600 - 0.36 1.7 0.92 20.1   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design 30326 ,D=130   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 30326 130 280 63.75 58 49 5 4 545 675 1300 1800 - 0.36 1.7 0.92 16.6   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30232J ,D=160   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30232J 160 290 52 48 40 4 3 530 730 1200 1600 4GB 0.44 1.4 0.76 13.7   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30230J ,D=150   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30230J 150 270 49 45 38 4 3 485 665 1300 1800 2GB 0.44 1.4 0.76 11.2   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30228J ,D=140   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30228J 140 250 45.75 42 36 4 3 390 515 1400 1900 4FB 0.44 1.4 0.76 8.74   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30226J ,D=130   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30226J 130 230 43.75 40 34 4 3 375 505 1500 2000 4FB 0.44 1.4 0.76 7.25   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30224J ,D=120   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30224J 120 215 43.5 40 34 3 2.5 335 450 1600 2200 4FB 0.44 1.4 0.76 6.28   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30222J ,D=110   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30222J 110 200 41 38 32 3 2.5 315 420 1800 2400 3FB 0.42 1.4 0.79 5.28   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30221J ,D=105   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30221J 105 190 39 36 30 3 2.5 280 365 1900 2600 3FB 0.42 1.4 0.79 4.51   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30219J ,D=95   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30219J 95 170 34.5 32 27 3 2.5 223 286 2200 2800 3FB 0.42 1.4 0.79 3.13   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30218J ,D=90   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30218J 90 160 32.5 30 26 2.5 2 201 256 2200 3000 3FB 0.42 1.4 0.79 2.6   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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NSK Tapered Roller Bearings, Single-Row Metric Design HR30217J ,D=85   Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. d D T B C Cone r min. Cup r min. Cr C0r Grease Oil Y1 Y0 HR30217J 85 150 30.5 28 24 2.5 2 184 233 2400 3200 3EB 0.42 1.4 0.79 2.12   DESIGN, TYPES, AND FEATURES Tapered roller bearings are designed so the apices of the cones formed by the raceways of the inner and outer rings and the inner ring rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, a component axial force occurs; therefore, it is necessary to use two bearings in opposition or some other multiple-bearing arrangement. For Metric Series medium-angle or steep-angle tapered roller bearings, the respective contact angle designation C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle designation is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears in automobiles. Some bearings with high load capacity (HR Series) contain a J suffix that indicates they conform to ISO specifications for outer ring back face raceway diameter, outer ring width, and contact angle. Therefore, the inner ring assembly and outer ring of bearings with a J suffix are internationally interchangeable. Some Metric Series tapered roller bearings specified by ISO 355 have different dimensions from past Series 3XX bearings. Some of these are listed in the bearing tables. These conform to ISO specifications for the small-end diameter of the inner ring and contact angle. The inner and outer ring assemblies are internationally interchangeable. The bearing designation structure, which has changed from the past, is listed below: Inch Series bearings also exist. Inner ring assemblies and outer rings are approximately formulated as follows (excluding four-row tapered roller bearings): Various arrangements of tapered roller bearings (excluding single-row bearings) are available. The cages of tapered roller bearings are usually made of pressed steel. Table 1   Design and Features of Tapered Roller Bearing Arrangements Design  Arrangement Ex. Bearing Designation Features Back-to-back HR30210JDB+KLR10 Two standard bearings are combined. The bearing clearances are adjusted by inner ring spacers or outer ring spacers. The inner rings, outer rings, and spacers are marked with serial numbers and mating marks. Components with the same serial number can be assembled by referring to the matching indications. Face-to-face HR30210JDF+KR KBE Type 100KBE31+L The KBE type is a back-to-back arrangement of bearings with an integrated outer ring spacer. The KH type is a face-to-face arrangement in which the inner rings are integrated. Since the bearing clearance is adjusted using spacers, components must have the same serial number for assembly with reference to the matching indications. KH Type 110KH31+K    

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