| 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 637/8-2ZS | 8 | 12 | 3.5 | 0.312 | 0.14 | 100000 | 50000 | Deep groove ball bearing |
| W 637/9 R-2Z | 9 | 14 | 4.5 | 0.52 | 0.236 | 95000 | 45000 | Deep groove ball bearing |
| W 637/9-2ZS | 9 | 14 | 4.5 | 0.52 | 0.236 | 95000 | 45000 | Deep groove ball bearing |
| W 637-2RS1 | 7 | 26 | 9 | 3.97 | 1.96 | 19000 | Deep groove ball bearing | |
| W 637-2RZ | 7 | 26 | 9 | 3.97 | 1.96 | 67000 | 32000 | Deep groove ball bearing |
| W 637-2Z | 7 | 26 | 9 | 3.97 | 1.96 | 67000 | 32000 | Deep groove ball bearing |
| W 638 | 8 | 28 | 9 | 3.97 | 1.96 | 67000 | 40000 | Deep groove ball bearing |
| W 638/1 | 1 | 3 | 1.5 | 0.052 | 0.012 | 240000 | 150000 | Deep groove ball bearing |
| W 638/1.5 R-2Z | 1.5 | 4 | 2 | 0.062 | 0.016 | 220000 | 110000 | Deep groove ball bearing |
| W 638/1.5-2Z | 1.5 | 4 | 2 | 0.062 | 0.016 | 220000 | 110000 | Deep groove ball bearing |
| W 638/2 R-2Z | 2 | 5 | 2.3 | 0.094 | 0.025 | 200000 | 100000 | Deep groove ball bearing |
| W 638/2 X-2Z | 2 | 5 | 2.5 | 0.094 | 0.025 | 200000 | 100000 | Deep groove ball bearing |
| W 638/2 XR-2Z | 2 | 5 | 2.5 | 0.094 | 0.025 | 200000 | 100000 | Deep groove ball bearing |
| W 638/2.5 R-2Z | 2.5 | 6 | 2.6 | 0.117 | 0.036 | 170000 | 85000 | Deep groove ball bearing |
| W 638/2.5-2Z | 2.5 | 6 | 2.6 | 0.117 | 0.036 | 170000 | 85000 | Deep groove ball bearing |
| W 638/2-2Z | 2 | 5 | 2.3 | 0.094 | 0.025 | 200000 | 100000 | Deep groove ball bearing |
| W 638/3 R-2RS1 | 3 | 7 | 3 | 0.178 | 0.057 | 45000 | Deep groove ball bearing | |
| W 638/3 R-2Z | 3 | 7 | 3 | 0.178 | 0.057 | 160000 | 80000 | Deep groove ball bearing |
| W 638/3-2RS1 | 3 | 7 | 3 | 0.178 | 0.057 | 45000 | Deep groove ball bearing | |
| W 638/3-2Z | 3 | 7 | 3 | 0.178 | 0.057 | 160000 | 80000 | Deep groove ball bearing |
| W 638/4 R-2RS1 | 4 | 9 | 4 | 0.364 | 0.114 | 40000 | Deep groove ball bearing | |
| W 638/4 R-2Z | 4 | 9 | 4 | 0.364 | 0.114 | 140000 | 70000 | Deep groove ball bearing |
| W 638/4 X-2RS1 | 4 | 10 | 4 | 0.553 | 0.245 | 36000 | Deep groove ball bearing | |
| W 638/4 X-2RZ | 4 | 10 | 4 | 0.553 | 0.245 | 130000 | 63000 | Deep groove ball bearing |
| W 638/4 X-2Z | 4 | 10 | 4 | 0.553 | 0.245 | 130000 | 63000 | Deep groove ball bearing |
| W 638/4 XR-2RS1 | 4 | 10 | 4 | 0.553 | 0.245 | 36000 | Deep groove ball bearing | |
| W 638/4 XR-2Z | 4 | 10 | 4 | 0.553 | 0.245 | 130000 | 63000 | Deep groove ball bearing |
| W 638/4-2RS1 | 4 | 9 | 4 | 0.364 | 0.114 | 40000 | Deep groove ball bearing | |
| W 638/4-2RZ | 4 | 9 | 4 | 0.364 | 0.114 | 140000 | 70000 | Deep groove ball bearing |
| W 638/4-2Z | 4 | 9 | 4 | 0.364 | 0.114 | 140000 | 70000 | Deep groove ball bearing |
Precision quality bearing manufacturer Bearing experts around you - solve all your bearing problems
WhatsApp