MPNbase

NSK bearings

159 verified NSK models in the database, 10–240 mm bore, across 1 bearing type. Each model page cites the source catalogue and carries graded cross references.

159 models 10–240 mm bore range Founded 1916 in Tokyo, Japan

About NSK

NSK Ltd. (Nippon Seiko Kabushiki-gaisha) is a Japanese bearing manufacturer producing deep-groove ball bearings, angular-contact and roller bearings for industrial and automotive applications, with boundary dimensions following the ISO 15 general plan.

Reading NSK designations

NSK deep-groove designations share the ISO base-number system (e.g. 6205) and add brand-specific suffixes such as VV for contact rubber seals and ZZ for shields, with C3/C4 clearance classes. See the designation guide for the full decode. How to read bearing numbers →

Deep Groove Ball Bearings (159)

Model Series d (mm) D (mm) B (mm) Seal Clearance C (kN)
6006 6000 30 55 13 open CN 14.6
6009-RSR 6000 45 75 16 RSR CN 23
6011-RSR 6000 55 90 18 RSR CN 31
6013-RSR 6000 65 100 18 RSR CN 33.5
6014-RSR 6000 70 110 20 RSR CN 42
6016-RSR 6000 80 125 22 RSR CN 52.5
6017-RSR 6000 85 130 22 RSR CN 54.5
6018-RSR 6000 90 140 24 RSR CN 64
6019-RSR 6000 95 145 24 RSR CN 66.5
6020-RSR 6000 100 150 24 RSR CN 66
6021-RSR 6000 105 160 26 RSR CN 79.5
6022-RSR 6000 110 170 28 RSR CN 93
6024-RSR 6000 120 180 28 RSR CN 97
6030-RSR 6000 150 225 35 RSR CN 138
6034-RSR 6000 170 260 42 RSR CN 177
6034-ZZ 6000 170 260 42 ZZ CN 177
6036-RSR 6000 180 280 46 RSR CN 198
6036-ZZ 6000 180 280 46 ZZ CN 198
6038-ZZ 6000 190 290 46 ZZ CN 207
6040-ZZ 6000 200 310 51 ZZ CN 228
6040 6000 200 310 51 open CN 228
6044-ZZ 6000 220 340 56 ZZ CN 259
61800-RSR 61800 10 19 5 RSR CN 1.89
61801-RSR 61800 12 21 5 RSR CN 2.11
61802-RSR 61800 15 24 5 RSR CN 2.28
61804-ZZ 61800 20 32 7 ZZ CN 4.4
61805-ZZ 61800 25 37 7 ZZ CN 4.95
61806-ZZ 61800 30 42 7 ZZ CN 5.2
61807-ZZ 61800 35 47 7 ZZ CN 5.4
61808-ZZ 61800 40 52 7 ZZ CN 7
61809-ZZ 61800 45 58 7 ZZ CN 7.25
61810-ZZ 61800 50 65 7 ZZ CN 7.05
61811-ZZ 61800 55 72 9 ZZ CN 9.7
61812-ZZ 61800 60 78 10 ZZ CN 12.6
61813-ZZ 61800 65 85 10 ZZ CN 13.1
61814-ZZ 61800 70 90 10 ZZ CN 13.3
61815-ZZ 61800 75 95 10 ZZ CN 13.8
61816-RSR 61800 80 100 10 RSR CN 13.9
61816-ZZ 61800 80 100 10 ZZ CN 13.9
61817-ZZ 61800 85 110 13 ZZ CN 20.6
61818-ZZ 61800 90 115 13 ZZ CN 20.9
61819-RSR 61800 95 120 13 RSR CN 21.2
61819-ZZ 61800 95 120 13 ZZ CN 21.2
61820-ZZ 61800 100 125 13 ZZ CN 21.5
61821-ZZ 61800 105 130 13 ZZ CN 21.8
61822-ZZ 61800 110 140 16 ZZ CN 31
61824-ZZ 61800 120 150 16 ZZ CN 32
61826-ZZ 61800 130 165 18 ZZ CN 40.5
61828-ZZ 61800 140 175 18 ZZ CN 42
61830-2RS 61800 150 190 20 2RS CN 52.5
61830-RSR 61800 150 190 20 RSR CN 52.5
61830-ZZ 61800 150 190 20 ZZ CN 52.5
61832-2RS 61800 160 200 20 2RS CN 53
61832-RSR 61800 160 200 20 RSR CN 53
61832-ZZ 61800 160 200 20 ZZ CN 53
61834-2RS 61800 170 215 22 2RS CN 66
61834-RSR 61800 170 215 22 RSR CN 66
61834-ZZ 61800 170 215 22 ZZ CN 66
61836-RSR 61800 180 225 22 RSR CN 66.5
61838-RSR 61800 190 240 24 RSR CN 80.5
61844-ZZ 61800 220 270 24 ZZ CN 84
61900-RSR 61900 10 22 6 RSR CN 2.97
61901-RSR 61900 12 24 6 RSR CN 3.2
61904-ZZ 61900 20 37 9 ZZ CN 7
61905-ZZ 61900 25 42 9 ZZ CN 7.75
61906-ZZ 61900 30 47 9 ZZ CN 7.95
61907-ZZ 61900 35 55 10 ZZ CN 11.6
61908-ZZ 61900 40 62 12 ZZ CN 15
61909-ZZ 61900 45 68 12 ZZ CN 15.5
61910-ZZ 61900 50 72 12 ZZ CN 16
61911-ZZ 61900 55 80 13 ZZ CN 17.6
61912-ZZ 61900 60 85 13 ZZ CN 21.4
61913-ZZ 61900 65 90 13 ZZ CN 19.1
61914-ZZ 61900 70 100 16 ZZ CN 26.1
61915-ZZ 61900 75 105 16 ZZ CN 26.8
61916-ZZ 61900 80 110 16 ZZ CN 27.4
61917-2RS 61900 85 120 18 2RS CN 35
61917-RSR 61900 85 120 18 RSR CN 35
61917-ZZ 61900 85 120 18 ZZ CN 35
61918-2RS 61900 90 125 18 2RS CN 36
61918-RSR 61900 90 125 18 RSR CN 36
61918-ZZ 61900 90 125 18 ZZ CN 36
61919-RSR 61900 95 130 18 RSR CN 37
61919-ZZ 61900 95 130 18 ZZ CN 37
61920-2RS 61900 100 140 20 2RS CN 47
61920-RSR 61900 100 140 20 RSR CN 47
61920-ZZ 61900 100 140 20 ZZ CN 47
61921-RSR 61900 105 145 20 RSR CN 46.5
61921-ZZ 61900 105 145 20 ZZ CN 46.5
61922-2RS 61900 110 150 20 2RS CN 48
61922-RSR 61900 110 150 20 RSR CN 48
61922-ZZ 61900 110 150 20 ZZ CN 48
61924-ZZ 61900 120 165 22 ZZ CN 58.5
61926-ZZ 61900 130 180 24 ZZ CN 71.5
61928-RSR 61900 140 190 24 RSR CN 73.5
61928-ZZ 61900 140 190 24 ZZ CN 73.5
61930-2RS 61900 150 210 28 2RS CN 93.5
61930-ZZ 61900 150 210 28 ZZ CN 93.5
61930 61900 150 210 28 open CN 93.5
61932-2RS 61900 160 220 28 2RS CN 95.5
61932-ZZ 61900 160 220 28 ZZ CN 95.5
61934-ZZ 61900 170 230 28 ZZ CN 94.5
61934 61900 170 230 28 open CN 94.5
61936-ZZ 61900 180 250 33 ZZ CN 131
61940-ZZ 61900 200 280 38 ZZ CN 158
61944-ZZ 61900 220 300 38 ZZ CN 161
61948-ZZ 61900 240 320 38 ZZ CN 170
6207-RSR 6200 35 72 17 RSR CN 28.2
6209-RSR 6200 45 85 19 RSR CN 34.5
6210-RSR 6200 50 90 20 RSR CN 38.5
6211-RSR 6200 55 100 21 RSR CN 47.5
6212-RSR 6200 60 110 22 RSR CN 57.5
6213-2RS 6200 65 120 23 2RS CN 63
6213-RSR 6200 65 120 23 RSR CN 63
6214-RSR 6200 70 125 24 RSR CN 68.5
6215-RSR 6200 75 130 25 RSR CN 73
6216-RSR 6200 80 140 26 RSR CN 80
6217-RSR 6200 85 150 28 RSR CN 92.5
6218-RSR 6200 90 160 30 RSR CN 106
6219-RSR 6200 95 170 32 RSR CN 120
6220-RSR 6200 100 180 34 RSR CN 134
6221-2RS 6200 105 190 36 2RS CN 146
6221-RSR 6200 105 190 36 RSR CN 146
6222-RSR 6200 110 200 38 RSR CN 159
6224-RSR 6200 120 215 40 RSR CN 171
6228-2RS 6200 140 250 42 2RS CN 183
6228-ZZ 6200 140 250 42 ZZ CN 183
6230-ZZ 6200 150 270 45 ZZ CN 194
6232-ZZ 6200 160 290 48 ZZ CN 204
6234-ZZ 6200 170 310 52 ZZ CN 234
6236-ZZ 6200 180 320 52 ZZ CN 250
6238-ZZ 6200 190 340 55 ZZ CN 280
6240-ZZ 6200 200 360 58 ZZ CN 296
6248 6200 240 440 72 open CN 375
6303-2RS 6300 17 47 14 2RS CN 15
6307-RSR 6300 35 80 21 RSR CN 36.5
6309-RSR 6300 45 100 25 RSR CN 58.5
6310-RSR 6300 50 110 27 RSR CN 68
6311-RSR 6300 55 120 29 RSR CN 78.5
6312-RSR 6300 60 130 31 RSR CN 90
6313-RSR 6300 65 140 33 RSR CN 102
6314-RSR 6300 70 150 35 RSR CN 115
6315-RSR 6300 75 160 37 RSR CN 125
6316-RSR 6300 80 170 39 RSR CN 135
6317-RSR 6300 85 180 41 RSR CN 146
6318-RSR 6300 90 190 43 RSR CN 157
6319-RSR 6300 95 200 45 RSR CN 168
6320-RSR 6300 100 215 47 RSR CN 191
6320 6300 100 215 47 open CN 191
6321-2RS 6300 105 225 49 2RS CN 202
6322-ZZ 6300 110 240 50 ZZ CN 226
6326-ZZ 6300 130 280 58 ZZ CN 252
6328-ZZ 6300 140 300 62 ZZ CN 278
6330-ZZ 6300 150 320 65 ZZ CN 300
6332-ZZ 6300 160 340 68 ZZ CN 305
6332 6300 160 340 68 open CN 305
6340 6300 200 420 80 open CN 415
6344 6300 220 460 88 open CN 450
6348 6300 240 500 95 open CN 515

Replacing an NSK bearing

Work from the dimensions finder when the goal is a cross-brand substitute: the exact-envelope tables compare every model sharing the same d×D×B with its load rating and seal/clearance options. For a same-brand successor, open the model page and follow its full/partial/verify cross reference grading.

Frequently asked questions

Where can I find NSK bearing cross references?

Every NSK model page on MPN Base carries a graded cross reference table — full matches with identical boundary dimensions and ratings within tolerance, partial matches requiring verification, and model-only correspondences to check manually. Start from this brand list or the cross reference tool and open a model for its equivalents.

Are NSK bearings interchangeable with other brands?

Boundary dimensions follow ISO 15, so same-designation models from different brands mount in the same shaft and housing space. They are not automatic equivalents: compare C/C0 load ratings, seal type, internal clearance, cage and precision class for the actual duty. Dimension-based interchange tables list the candidates side by side.

Is MPN Base an authorized NSK distributor?

No. MPN Base is an independent reference database. NSK and its product designations are trademarks of their owner and are used on this site for identification purposes only; specifications are cited to the public catalogue version and current production values should be verified with the manufacturer or an authorized distributor.