| Domestic and foreign models | |||
| New domestic models | 7211B | ||
| Domestic old models | 66211 | ||
| Dimensions | |||
| Inside diameter（d） | 55 | mm | |
| Outside diameter（D） | 100 | mm | |
| Thickness（B） | 21 | mm | |
| Basic Load Rating | |||
| Dynamic load（Cr） | 44.1 | KN | |
| Static load（Cor） | 33.8 | KN | |
| Limiting Speeds | |||
| Grease | 5700 | rpm | |
| Oil | 7600 | rpm | |
| Weight | |||
| Weight | 0.635 | kg | |
| BEARING TYPE | |||
| Type | Needle bearing | ||
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