| Designations (Bearing with tapered bore) | 21308EK | |
| Principal dimensions (mm) | d | 40 |
| D | 90 | |
| B | 23 | |
| r1,2 | 1.5 | |
| Basic load ratings(KN) | Basic load ratings (dynamic) (C) | 100.88 |
| Basic load ratings (static) (C0) | 104.76 | |
| Fatigue load limit (Pu) | 11.8 | |
| Speed ratings(r/min) | Speed ratings (Reference speed) | 7000 |
| Speed ratings (Limting speed) | 8000 | |
| Mass(kg) | 0.75 | |
+86-021-54846037