| Bearing type 轴承型号 | Boundary Dimensions（mm）外形尺寸 | ||
|---|---|---|---|
| d 内径 | D 外径 | B 内圈 宽度 | |
| W 639/2-2Z | 2 | 6 | 3 |
| W 639/3 R-2RS1 | 3 | 8 | 4 |
| W 639/3 R-2Z | 3 | 8 | 4 |
| W 639/3-2RS1 | 3 | 8 | 4 |
| W 639/3-2Z | 3 | 8 | 4 |
| W 639-2RS1 | 9 | 30 | 10 |
| W 639-2RZ | 9 | 30 | 10 |
| W 639-2Z | 9 | 30 | 10 |
| W618/0.6 | 0.6 | 2.5 | 1 |
| WBB1-8700 | 1.2 | 4 | 1.8 |
| WBB1-8700 R | 1.2 | 4 | 1.8 |
| WBB1-8700-2Z | 1.2 | 4 | 2.5 |
| WBB1-8701 | 2 | 7 | 2.5 |
| WBB1-8701 R | 2 | 7 | 2.5 |
| WBB1-8702 | 2.5 | 8 | 2.5 |
| WBB1-8702 R | 2.5 | 8 | 2.5 |
| WBB1-8703 | 3 | 8 | 2.5 |
| WBB1-8703 R | 3 | 8 | 2.5 |
| WBB1-8704 | 3 | 9 | 2.5 |
| WBB1-8704 R | 3 | 9 | 2.5 |
| WBB1-8705 | 5 | 10 | 3 |
| WBB1-8705 R | 5 | 10 | 3 |
| WBB1-8705 R-2RS1 | 5 | 10 | 4 |
| WBB1-8705 R-2Z | 5 | 10 | 4 |
| WBB1-8705-2RS1 | 5 | 10 | 4 |
| WBB1-8705-2RZ | 5 | 10 | 4 |
| WBB1-8705-2Z | 5 | 10 | 4 |
| WBB1-8706 R-2RS1 | 6 | 12 | 4 |
| WBB1-8706 R-2Z | 6 | 12 | 4 |
| WBB1-8706-2RS1 | 6 | 12 | 4 |
