| Designations | NK42/20 | |
| Dimensions(mm) | Fw | 42 |
| D | 52 | |
| C | 20 | |
| r1,2 | 0.3 | |
| Basic load ratings(KN) | Basic load ratings (dynamic)(C) | 26,5 |
| Basic load ratings (static)(C0) | 50,9 | |
| Fatigue load limit (Pu) | 6,4 | |
| Speed ratings(r/min) | Speed ratings (Reference speed) | 9 500 |
| Speed ratings (Limting speed) | 11 000 | |
| Mass(kg) | 0,086 | |
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