| Domestic and foreign models | |||
| New domestic models | 7221C/DB | ||
| Domestic old models | 236221 | ||
| Dimensions | |||
| Inside diameter（d） | 105 | mm | |
| Outside diameter（D） | 190 | mm | |
| Thickness（B） | 72 | mm | |
| Basic Load Rating | |||
| Dynamic load（Cr） | 264 | KN | |
| Static load（Cor） | 287 | KN | |
| Limiting Speeds | |||
| Grease | 4300 | rpm | |
| Oil | 5700 | rpm | |
| Weight | |||
| Weight | 8.35 | kg | |
| BEARING TYPE | |||
| Type | Needle bearing | ||
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