| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| 308-ZNR | 40 | 90 | 23 |
| 6308-2RS1 | 40 | 90 | 23 |
| 6408 | 40 | 110 | 27 |
| 6308-2Z | 40 | 90 | 23 |
| 6008 NR | 40 | 68 | 15 |
| 6208-2RZ | 40 | 80 | 18 |
| 6008 N | 40 | 68 | 15 |
| W 6008 | 40 | 68 | 15 |
| 4208 ATN9 | 40 | 80 | 23 |
| W 6208-2RS1 | 40 | 80 | 18 |
| W 61908 R-2Z | 40 | 62 | 12 |
| 6308-ZNR | 40 | 90 | 23 |
| 208 NR | 40 | 80 | 18 |
| 4308 ATN9 | 40 | 90 | 33 |
| 308-2ZNR | 40 | 90 | 23 |
| 6008-RS1 | 40 | 68 | 15 |
| W 61908-2RS1 | 40 | 62 | 12 |
| 6008 | 40 | 68 | 15 |
| 6308-2ZNR | 40 | 90 | 23 |
| 61808 | 40 | 52 | 7 |
| W 6208-2RZ | 40 | 80 | 18 |
| W 6208-2RS1/VP311 | 40 | 80 | 18 |
| W 61808 R | 40 | 52 | 7 |
| 6008-Z | 40 | 68 | 15 |
| 6008-2RS1 | 40 | 68 | 15 |
| 208-2Z | 40 | 80 | 18 |
| W 6008-2RZ | 40 | 68 | 15 |
| W 61908 | 40 | 62 | 12 |
| 16008 | 40 | 68 | 9 |
| 6208-ZNR | 40 | 80 | 18 |
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