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size
| d | 50 | mm | |
| D | 80 | mm | |
| B | 16 | mm | |
| d1 | 60.25 | mm | |
| d2 | 57.9 | mm | |
| D2 | 72.9 | mm | |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 0.6 | mm |
| a | 16.8 | mm |
Size shoulder size
| da | min. | 54.6 | mm |
| da | max. | 59.7 | mm |
| db | min. | 54.6 | mm |
| db | max. | 57.3 | mm |
| Da | max. | 75.4 | mm |
| Db | max. | 75.8 | mm |
| ra | max. | 1 | mm |
| rb | max. | 0.6 | mm |
data calculation
| Basic dynamic load rating | C | 15.6 | kN | |
| Basic rated static load | C0 | 10.6 | kN | |
| Fatigue load limit | Pu | 0.45 | kN | |
| 润滑脂润滑可达转速 | 30000 | r/min | ||
| 球直径 | Dw | 7.938 | mm | |
| 页数 | z | 21 | ||
| 预载荷（背对背配置，面对面配置） | ||||
| 预载荷等级 A | GA | 85 | N | |
| 轴向静刚度 | ||||
| 预载荷等级 A | 46 | N/µm | ||
| 预载荷等级 B | GB | 250 | N | |
| 预载荷等级 B | 72 | N/µm | ||
| 预载荷等级 C | GC | 500 | N | |
| 预载荷等级 C | 98 | N/µm | ||
| coefficient | f | 1.08 | ||
| coefficient | f1 | 1 | ||
| coefficient | f2A | 1 | ||
| coefficient | f2B | 1.03 | ||
| coefficient | f2C | 1.05 | ||
| coefficient | fHC | 1.01 | ||
| 当量轴承载荷coefficient | ||||
| coefficient | f0 | 8.2 | ||
weight
| Bearing weight | 0.23 | kg |
