| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| D/W R3A | 4.762 | 15.875 | 4.978 |
| D/W RW3 R-2RS1 | 4.762 | 12.7 | 5.77 |
| D/W R156 R-2ZS | 4.762 | 7.938 | 3.175 |
| D/W RW166-2Z | 4.762 | 9.525 | 3.967 |
| W 624-2RZ | 4 | 13 | 5 |
| W 624 R | 4 | 13 | 5 |
| W 624-2Z | 4 | 13 | 5 |
| W 634-2RZ | 4 | 16 | 5 |
| W 604 R-2Z | 4 | 12 | 4 |
| W 638/4 X-2Z | 4 | 10 | 4 |
| 619/4-2Z | 4 | 11 | 4 |
| 624-Z | 4 | 13 | 5 |
| 634 | 4 | 16 | 5 |
| 634-2RS1 | 4 | 16 | 5 |
| W 619/4 R-2Z | 4 | 11 | 4 |
| W 634 R | 4 | 16 | 5 |
| W 617/4 R | 4 | 7 | 2 |
| W 617/4 X | 4 | 8 | 2 |
| W 634 R-2Z | 4 | 16 | 5 |
| W 638/4 R-2Z | 4 | 9 | 4 |
| 624 | 4 | 13 | 5 |
| 604 | 4 | 12 | 4 |
| W 619/4 R-2RS1 | 4 | 11 | 4 |
| W 634-2Z | 4 | 16 | 5 |
| W 627/4 R-2ZS | 4 | 7 | 2.5 |
| W 619/4 R | 4 | 11 | 4 |
| W 638/4 XR-2RS1 | 4 | 10 | 4 |
| W 624 R-2RZ | 4 | 13 | 5 |
| W 638/4-2RS1 | 4 | 9 | 4 |
| W 617/4 | 4 | 7 | 2 |
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