NSK Tapered Roller Bearings

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 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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NSK Tapered Roller Bearings, Single-Row Metric Design HR30216J ,D=80   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 HR30216J 80 140 28.25 26 22 2.5 2 157 195 2600 3400 3EB 0.42 1.4 0.79 1.68   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 HR30215J ,D=75   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 HR30215J 75 130 27.25 25 22 2 1.5 143 182 2800 3800 4DB 0.44 1.4 0.76 1.43   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 HR30214J ,D=70   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 HR30214J 70 125 26.25 24 21 2 1.5 132 163 2800 4000 3EB 0.42 1.4 0.79 1.3   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 HR30213J ,D=65   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 HR30213J 65 120 24.75 23 20 2 1.5 122 151 3000 4000 3EB 0.41 1.5 0.81 1.18   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 HR30212J ,D=60   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 HR30212J 60 110 23.75 22 19 2 1.5 104 123 3400 4500 3EB 0.41 1.5 0.81 0.93   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 HR30211J ,D=55   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 HR30211J 55 100 22.75 21 18 2 1.5 94.5 113 3600 5000 3DB 0.41 1.5 0.81 0.736   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 HR30210J ,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 HR30210J 50 90 21.75 20 17 1.5 1.5 76 91.5 4000 5300 3DB 0.42 1.4 0.79 0.557     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 HR30209J ,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 HR30209J 45 85 20.75 19 16 1.5 1.5 68.5 79.5 4300 6000 3DB 0.41 1.5 0.81 0.488   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 HR30208J ,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 HR30208J 40 80 19.75 18 16 1.5 1.5 63.5 70 4800 6300 3DB 0.38 1.6 0.88 0.437   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 HR30207J ,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 HR30207J 35 72 18.25 17 15 1.5 1.5 54 59.5 5300 7100 3DB 0.38 1.6 0.88 0.34   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 HR30206J ,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 HR30206J 30 62 17.25 16 14 1 1 43 47.5 6000 8000 3DB 0.38 1.6 0.88 0.238   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 HR30205J ,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 HR30205J 25 52 16.25 15 13 1 1 32 35 7100 10000 3CC 0.38 1.6 0.88 0.157   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 HR30204J ,D=20 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) d D T B C Cone r min. Cup r min. Cr C0r Grease Oil HR30204J 20 47 15.25 14 12 1 1 27.9 28.5 8000 11000 ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. Y1 Y0 2DB 0.35 1.7 0.96 0.127   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 HR30202 ,D=15 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min-1) d D T B C Cone r min. Cup r min. Cr C0r Grease Oil HR30202 15 35 11.75 11 10 0.6 0.6 14.8 13.2 11000 15000 ISO355 Dimensions Series approx. Constant e Axial Load Factors Mass (kg) approx. Y1 Y0 - 0.32 1.9 1 0.053   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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