| Bearing model | Boundary Dimensions（mm） | Speed Rating(ipm) | Load Rating （kn） | Bearing type | ||||
|---|---|---|---|---|---|---|---|---|
| d | D | B | Grease lubrication | Oil lubrication | Dynamic Cr | Static Cor | ||
| W 639/2-2Z | 2 | 6 | 3 | 0.19 | 0.051 | 180000 | 90000 | Deep groove ball bearing |
| W 639/3 R-2RS1 | 3 | 8 | 4 | 0.319 | 0.09 | 43000 | Deep groove ball bearing | |
| W 639/3 R-2Z | 3 | 8 | 4 | 0.319 | 0.09 | 150000 | 75000 | Deep groove ball bearing |
| W 639/3-2RS1 | 3 | 8 | 4 | 0.319 | 0.09 | 43000 | Deep groove ball bearing | |
| W 639/3-2Z | 3 | 8 | 4 | 0.319 | 0.09 | 150000 | 75000 | Deep groove ball bearing |
| W 639-2RS1 | 9 | 30 | 10 | 4.36 | 2.32 | 16000 | Deep groove ball bearing | |
| W 639-2RZ | 9 | 30 | 10 | 4.36 | 2.32 | 56000 | 28000 | Deep groove ball bearing |
| W 639-2Z | 9 | 30 | 10 | 4.36 | 2.32 | 60000 | 30000 | Deep groove ball bearing |
| W618/0.6 | 0.6 | 2.5 | 1 | 0.034 | 0.007 | 260000 | 160000 | Deep groove ball bearing |
| WBB1-8700 | 1.2 | 4 | 1.8 | 0.062 | 0.016 | 220000 | 140000 | Deep groove ball bearing |
| WBB1-8700 R | 1.2 | 4 | 1.8 | 0.062 | 0.016 | 220000 | 140000 | Deep groove ball bearing |
| WBB1-8700-2Z | 1.2 | 4 | 2.5 | 0.062 | 0.016 | 220000 | 110000 | Deep groove ball bearing |
| WBB1-8701 | 2 | 7 | 2.5 | 0.221 | 0.067 | 160000 | 100000 | Deep groove ball bearing |
| WBB1-8701 R | 2 | 7 | 2.5 | 0.221 | 0.067 | 160000 | 100000 | Deep groove ball bearing |
| WBB1-8702 | 2.5 | 8 | 2.5 | 0.319 | 0.09 | 150000 | 95000 | Deep groove ball bearing |
| WBB1-8702 R | 2.5 | 8 | 2.5 | 0.319 | 0.09 | 150000 | 95000 | Deep groove ball bearing |
| WBB1-8703 | 3 | 8 | 2.5 | 0.225 | 0.072 | 150000 | 90000 | Deep groove ball bearing |
| WBB1-8703 R | 3 | 8 | 2.5 | 0.225 | 0.072 | 150000 | 90000 | Deep groove ball bearing |
| WBB1-8704 | 3 | 9 | 2.5 | 0.325 | 0.095 | 140000 | 90000 | Deep groove ball bearing |
| WBB1-8704 R | 3 | 9 | 2.5 | 0.325 | 0.095 | 140000 | 90000 | Deep groove ball bearing |
| WBB1-8705 | 5 | 10 | 3 | 0.247 | 0.085 | 130000 | 85000 | Deep groove ball bearing |
| WBB1-8705 R | 5 | 10 | 3 | 0.247 | 0.085 | 130000 | 85000 | Deep groove ball bearing |
| WBB1-8705 R-2RS1 | 5 | 10 | 4 | 0.247 | 0.085 | 38000 | Deep groove ball bearing | |
| WBB1-8705 R-2Z | 5 | 10 | 4 | 0.247 | 0.085 | 130000 | 67000 | Deep groove ball bearing |
| WBB1-8705-2RS1 | 5 | 10 | 4 | 0.247 | 0.085 | 38000 | Deep groove ball bearing | |
| WBB1-8705-2RZ | 5 | 10 | 4 | 0.247 | 0.085 | 130000 | 67000 | Deep groove ball bearing |
| WBB1-8705-2Z | 5 | 10 | 4 | 0.247 | 0.085 | 130000 | 67000 | Deep groove ball bearing |
| WBB1-8706 R-2RS1 | 6 | 12 | 4 | 0.403 | 0.146 | 32000 | Deep groove ball bearing | |
| WBB1-8706 R-2Z | 6 | 12 | 4 | 0.403 | 0.146 | 110000 | 56000 | Deep groove ball bearing |
| WBB1-8706-2RS1 | 6 | 12 | 4 | 0.403 | 0.146 | 32000 | Deep groove ball bearing | |
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