| Domestic and foreign models | |||
| New domestic models | 31328JR | ||
| Domestic old models | - | ||
| Main dimensions | |||
| Bore size（d） | 140 | mm | |
| External diameter（D） | 300 | mm | |
| Thickness（B） | 70 | mm | |
| Basic rated load | |||
| Live load（Cr） | 674 | KN | |
| Static load（Cor） | 865 | KN | |
| Ultimate speed | |||
| Grease | 1100 | rpm | |
| Oil lubrication | 1500 | rpm | |
| Weight | |||
| Weight | 23.3 | kg | |
| Bearing type | |||
| Type | Tapered roller bearing | ||
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Shandong Ruidefu Transmission Equipment Co., Ltd.