| d | 55 |
| D | 120 |
| T | 31.5 |
| B | 29 |
| C | 25 |
| R径向 | 2.5 |
| R轴向 | 2.5 |
| r径向 | 2 |
| r轴向 | 2 |
| Cr | 153 |
| Cor | 178 |
| 脂润滑 | 3200 |
| 油润滑 | 4300 |
| 轴承代号 | 30311 |
| 重量 Kg |
1.65 |
| da(max) | 70 |
| db(min) | 65 |
| Da(min) | 104 |
| Da(max) | 110 |
| Db(min) | 112 |
| Ca(min) | 4 |
| Cb(min) | 6.5 |
| e | 0.35 |
| Y | 1.7 |
| Yo | 0.96 |
| a | 25 |
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