| 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 61902 | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 34000 | Deep groove ball bearing |
| W 61902 R | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 34000 | Deep groove ball bearing |
| W 61902 R-2RS1 | 15 | 28 | 7 | 3.71 | 2.24 | 16000 | Deep groove ball bearing | |
| W 61902 R-2RZ | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 28000 | Deep groove ball bearing |
| W 61902 R-2Z | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 28000 | Deep groove ball bearing |
| W 61902-2RS1 | 15 | 28 | 7 | 3.71 | 2.24 | 16000 | Deep groove ball bearing | |
| W 61902-2RZ | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 28000 | Deep groove ball bearing |
| W 61902-2Z | 15 | 28 | 7 | 3.71 | 2.24 | 56000 | 28000 | Deep groove ball bearing |
| W 61903 | 17 | 30 | 7 | 3.97 | 2.55 | 50000 | 32000 | Deep groove ball bearing |
| W 61903 R | 17 | 30 | 7 | 3.97 | 2.55 | 50000 | 32000 | Deep groove ball bearing |
| W 61903 R-2Z | 17 | 30 | 7 | 3.97 | 2.55 | 50000 | 24000 | Deep groove ball bearing |
| W 61903-2RS1 | 17 | 30 | 7 | 3.97 | 2.55 | 14000 | Deep groove ball bearing | |
| W 61903-2RZ | 17 | 30 | 7 | 3.97 | 2.55 | 50000 | 24000 | Deep groove ball bearing |
| W 61903-2Z | 17 | 30 | 7 | 3.97 | 2.55 | 50000 | 24000 | Deep groove ball bearing |
| W 61904 | 20 | 37 | 9 | 5.53 | 3.65 | 43000 | 26000 | Deep groove ball bearing |
| W 61904 R | 20 | 37 | 9 | 5.53 | 3.65 | 43000 | 26000 | Deep groove ball bearing |
| W 61904 R-2Z | 20 | 37 | 9 | 5.53 | 3.65 | 43000 | 20000 | Deep groove ball bearing |
| W 61904-2RS1 | 20 | 37 | 9 | 5.53 | 3.65 | 12000 | Deep groove ball bearing | |
| W 61904-2RZ | 20 | 37 | 9 | 5.53 | 3.65 | 43000 | 20000 | Deep groove ball bearing |
| W 61904-2Z | 20 | 37 | 9 | 5.53 | 3.65 | 43000 | 20000 | Deep groove ball bearing |
| W 61905 | 25 | 42 | 9 | 6.05 | 4.5 | 34000 | 22000 | Deep groove ball bearing |
| W 61905 R | 25 | 42 | 9 | 6.05 | 4.5 | 34000 | 22000 | Deep groove ball bearing |
| W 61905 R-2Z | 25 | 42 | 9 | 6.05 | 4.5 | 34000 | 17000 | Deep groove ball bearing |
| W 61905-2RS1 | 25 | 42 | 9 | 6.05 | 4.5 | 10000 | Deep groove ball bearing | |
| W 61905-2RZ | 25 | 42 | 9 | 6.05 | 4.5 | 34000 | 17000 | Deep groove ball bearing |
| W 61905-2Z | 25 | 42 | 9 | 6.05 | 4.5 | 34000 | 17000 | Deep groove ball bearing |
| W 61906 | 30 | 47 | 9 | 6.24 | 5 | 30000 | 19000 | Deep groove ball bearing |
| W 61906 R | 30 | 47 | 9 | 6.24 | 5 | 30000 | 19000 | Deep groove ball bearing |
| W 61906 R-2Z | 30 | 47 | 9 | 6.24 | 5 | 30000 | 15000 | Deep groove ball bearing |
| W 61906-2RS1 | 30 | 47 | 9 | 6.24 | 5 | 8500 | Deep groove ball bearing | |
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