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size
| d | 20 | mm | |
| D | 32 | mm | |
| B | 7 | mm | |
| d1 | 24.1 | mm | |
| d2 | 24.1 | mm | |
| D1 | 28.1 | mm | |
| r1,2 | min. | 0.3 | mm |
| r3,4 | min. | 0.15 | mm |
| a | 7 | mm |
Size shoulder size
| da | min. | 22 | mm |
| db | min. | 22 | mm |
| Da | max. | 30 | mm |
| Db | max. | 31.2 | mm |
| ra | max. | 0.3 | mm |
| rb | max. | 0.15 | mm |
| dn | 24.5 | mm |
data calculation
| Basic dynamic load rating | C | 3.9 | kN | |
| Basic rated static load | C0 | 2.65 | kN | |
| Fatigue load limit | Pu | 0.112 | kN | |
| 润滑脂润滑可达转速 | 53000 | r/min | ||
| 油气润滑法可达转速 | 80000 | r/min | ||
| 球直径 | Dw | 3.175 | mm | |
| 页数 | z | 17 | ||
| 参考润滑脂量 | Gref | 0.18 | cm³ | |
| 预载荷（背对背配置，面对面配置） | ||||
| 预载荷等级 A | GA | 20 | N | |
| 轴向静刚度 | ||||
| 预载荷等级 A | 25 | N/µm | ||
| 预载荷等级 B | GB | 60 | N | |
| 预载荷等级 B | 42 | N/µm | ||
| 预载荷等级 C | GC | 120 | N | |
| 预载荷等级 C | 61 | N/µm | ||
| coefficient | f | 1.08 | ||
| coefficient | f1 | 1 | ||
| coefficient | f2A | 1 | ||
| coefficient | f2B | 1.1 | ||
| coefficient | f2C | 1.18 | ||
| coefficient | fHC | 1.02 | ||
| 当量轴承载荷coefficient | ||||
| coefficient | f0 | 16 | ||
weight
| Bearing weight | 0.017 | kg |
