
| Domestic and foreign models | |||
| New domestic models | WF638/7-2Z | ||
| Domestic old models | - | ||
| Dimensions | |||
| Inside diameter(d) | 7 | mm | |
| Outside diameter(D) | 14 | mm | |
| Thickness(B) | 5 | mm | |
| Basic Load Rating | |||
| Dynamic load(Cr) | 1.15 | KN | |
| Static load(Cor) | 0.51 | KN | |
| Limiting Speeds | |||
| Grease | 45000 | rpm | |
| Oil | 54000 | rpm | |
| Weight | |||
| Weight | 2.4 | kg | |
| BEARING TYPE | |||
| Type | Deep groove ball bearings | ||
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