| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| 638/8-2Z | 8 | 16 | 6 |
| 628-2Z | 8 | 24 | 8 |
| W 628/8 R-2RZ | 8 | 16 | 5 |
| W 637/8 R-2Z | 8 | 12 | 3.5 |
| WBB1-8708-2RZ | 8 | 14 | 4 |
| W 628-2RS1 | 8 | 24 | 8 |
| WBB1-8708 R-2RS1 | 8 | 14 | 4 |
| 608-Z | 8 | 22 | 7 |
| W 619/8 R-2RS1 | 8 | 19 | 6 |
| 607/8-Z | 8 | 19 | 6 |
| W 637/8 R-2ZS | 8 | 12 | 3.5 |
| W 628-2Z | 8 | 24 | 8 |
| W 608 R-2RZ | 8 | 22 | 7 |
| W 619/8 R | 8 | 19 | 6 |
| 608-2Z | 8 | 22 | 7 |
| W 617/8 | 8 | 12 | 2.5 |
| W 619/8 R-2Z | 8 | 19 | 6 |
| W 637/8-2ZS | 8 | 12 | 3.5 |
| 628-2RS1 | 8 | 24 | 8 |
| 628/8-2Z | 8 | 16 | 5 |
| W 637/8 X | 8 | 14 | 3.5 |
| W 608 | 8 | 22 | 7 |
| W 638-2Z | 8 | 28 | 9 |
| W 608 R-2RS1 | 8 | 22 | 7 |
| W 638 | 8 | 28 | 9 |
| W 619/8-2Z | 8 | 19 | 6 |
| W 628 | 8 | 24 | 8 |
| 608-2RSH | 8 | 22 | 7 |
| 608-2RSL | 8 | 22 | 7 |
| WBB1-8708-2RS1 | 8 | 14 | 4 |
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