| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| W 609-2RS1 | 9 | 24 | 7 |
| W 628/9-2Z | 9 | 17 | 5 |
| W 639-2Z | 9 | 30 | 10 |
| 609-2RSL | 9 | 24 | 7 |
| 609-2RSH | 9 | 24 | 7 |
| W 628/9-2RS1 | 9 | 17 | 5 |
| W 628/9-2RZ | 9 | 17 | 5 |
| W 617/9 R | 9 | 14 | 3 |
| 618/9 | 9 | 17 | 4 |
| 629-Z | 9 | 26 | 8 |
| W 619/9 | 9 | 20 | 6 |
| W 638-2RS1 | 8 | 28 | 9 |
| W 608-2Z | 8 | 22 | 7 |
| W 638/8 R-2Z | 8 | 16 | 6 |
| W 628/8-2Z | 8 | 16 | 5 |
| WBB1-8708 R-2Z | 8 | 14 | 4 |
| 628/8-2RS1 | 8 | 16 | 5 |
| W 608 R-2Z | 8 | 22 | 7 |
| W 638-2RZ | 8 | 28 | 9 |
| 628-RS1 | 8 | 24 | 8 |
| WBB1-8708-2Z | 8 | 14 | 4 |
| W 619/8-2RS1 | 8 | 19 | 6 |
| W 608-2RS1 | 8 | 22 | 7 |
| 619/8-2Z | 8 | 19 | 6 |
| 628-Z | 8 | 24 | 8 |
| 628 | 8 | 24 | 8 |
| 628-2RZ | 8 | 24 | 8 |
| W 618/8 R | 8 | 16 | 4 |
| 608 | 8 | 22 | 7 |
| 638-RZ | 8 | 28 | 9 |
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