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size
| d | 20 | mm | |
| D | 47 | mm | |
| B | 14 | mm | |
| d1 | 29.1 | mm | |
| d2 | 29.1 | mm | |
| D1 | 38.7 | mm | |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 0.3 | mm |
| a | 11.6 | mm |
Size shoulder size
| da | min. | 25.6 | mm |
| db | min. | 25.6 | mm |
| Da | max. | 41.4 | mm |
| Db | max. | 44.6 | mm |
| ra | max. | 1 | mm |
| rb | max. | 0.3 | mm |
| dn | 31.1 | mm |
data calculation
| Basic dynamic load rating | C | 11.9 | kN | |
| Basic rated static load | C0 | 5.85 | kN | |
| Fatigue load limit | Pu | 0.245 | kN | |
| 润滑脂润滑可达转速 | 43000 | r/min | ||
| 油气润滑法可达转速 | 60000 | r/min | ||
| 球直径 | Dw | 7.938 | mm | |
| 页数 | z | 11 | ||
| 参考润滑脂量 | Gref | 1.539 | cm³ | |
| 预载荷（背对背配置，面对面配置） | ||||
| 预载荷等级 A | GA | 45 | N | |
| 轴向静刚度 | ||||
| 预载荷等级 A | 28 | N/µm | ||
| 预载荷等级 B | GB | 90 | N | |
| 预载荷等级 B | 37 | N/µm | ||
| 预载荷等级 C | GC | 180 | N | |
| 预载荷等级 C | 50 | N/µm | ||
| 预载荷等级 D | GD | 360 | N | |
| 预载荷等级 D | 70 | N/µm | ||
| coefficient | f | 1.03 | ||
| coefficient | f1 | 1 | ||
| coefficient | f2A | 1 | ||
| coefficient | f2B | 1.01 | ||
| coefficient | f2C | 1.03 | ||
| coefficient | f2D | 1.06 | ||
| coefficient | fHC | 1.01 | ||
| 当量轴承载荷coefficient | ||||
| coefficient | f0 | 8.7 | ||
weight
| Bearing weight | 0.09 | kg |
