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| Bearing model | Boundary Dimensions（mm） | Speed Rating(ipm) | Load Rating （kn） | Bearing type | ||||
|---|---|---|---|---|---|---|---|---|
| d | D | B | Grease lubrication | Oil lubrication | Dynamic Cr | Static Cor | ||
| WBB1-8702 R | 2.5 | 8 | 2.5 | 0.319 | 0.09 | 150000 | 95000 | Deep groove ball bearing |
| WBB1-8702 | 2.5 | 8 | 2.5 | 0.319 | 0.09 | 150000 | 95000 | Deep groove ball bearing |
| WBB1-8701 R | 2 | 7 | 2.5 | 0.221 | 0.067 | 160000 | 100000 | Deep groove ball bearing |
| WBB1-8701 | 2 | 7 | 2.5 | 0.221 | 0.067 | 160000 | 100000 | Deep groove ball bearing |
| WBB1-8700-2Z | 1.2 | 4 | 2.5 | 0.062 | 0.016 | 220000 | 110000 | Deep groove ball bearing |
| WBB1-8700 R | 1.2 | 4 | 1.8 | 0.062 | 0.016 | 220000 | 140000 | Deep groove ball bearing |
| WBB1-8700 | 1.2 | 4 | 1.8 | 0.062 | 0.016 | 220000 | 140000 | Deep groove ball bearing |
| W618/0.6 | 0.6 | 2.5 | 1 | 0.034 | 0.007 | 260000 | 160000 | Deep groove ball bearing |
| W 639-2Z | 9 | 30 | 10 | 4.36 | 2.32 | 60000 | 30000 | Deep groove ball bearing |
| W 639-2RZ | 9 | 30 | 10 | 4.36 | 2.32 | 56000 | 28000 | Deep groove ball bearing |
| W 639-2RS1 | 9 | 30 | 10 | 4.36 | 2.32 | 16000 | Deep groove ball bearing | |
| W 639/3-2Z | 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 R-2Z | 3 | 8 | 4 | 0.319 | 0.09 | 150000 | 75000 | Deep groove ball bearing |
| W 639/3 R-2RS1 | 3 | 8 | 4 | 0.319 | 0.09 | 43000 | Deep groove ball bearing | |
| W 639/2-2Z | 2 | 6 | 3 | 0.19 | 0.051 | 180000 | 90000 | Deep groove ball bearing |
| W 639/2.5-2ZS | 2.5 | 7 | 3.5 | 0.221 | 0.067 | 160000 | 80000 | Deep groove ball bearing |
| W 639/2.5 R-2ZS | 2.5 | 7 | 3.5 | 0.221 | 0.067 | 160000 | 80000 | Deep groove ball bearing |
| W 639/2 R-2Z | 2 | 6 | 3 | 0.19 | 0.051 | 180000 | 90000 | Deep groove ball bearing |
| W 639/1.5-2Z | 1.5 | 5 | 2.6 | 0.135 | 0.036 | 200000 | 100000 | Deep groove ball bearing |
| W 639/1.5 R-2Z | 1.5 | 5 | 2.6 | 0.135 | 0.036 | 200000 | 100000 | Deep groove ball bearing |
| W 639 | 9 | 30 | 10 | 4.36 | 2.32 | 60000 | 36000 | Deep groove ball bearing |
| W 638-2Z | 8 | 28 | 9 | 3.97 | 1.96 | 67000 | 32000 | Deep groove ball bearing |
| W 638-2RZ | 8 | 28 | 9 | 3.97 | 1.96 | 67000 | 32000 | Deep groove ball bearing |
| W 638-2RS1 | 8 | 28 | 9 | 3.97 | 1.96 | 19000 | Deep groove ball bearing | |
| W 63806-2Z | 30 | 42 | 10 | 3.58 | 2.9 | 34000 | 17000 | Deep groove ball bearing |
| W 63806-2RZ | 30 | 42 | 10 | 3.58 | 2.9 | 34000 | 17000 | Deep groove ball bearing |
| W 63806-2RS1 | 30 | 42 | 10 | 3.58 | 2.9 | 9500 | Deep groove ball bearing | |
| W 63806 R-2Z | 30 | 42 | 10 | 3.58 | 2.9 | 34000 | 17000 | Deep groove ball bearing |
| W 63806 R | 30 | 42 | 10 | 3.58 | 2.9 | 34000 | 20000 | Deep groove ball bearing |
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