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| Model | NA4920 | 
| d | 100 mm | 
| od | 40 mm | 
| B | 140 mm | 
| cr | 125 kN | 
| cor | 280 kN | 
| Pu | 34 Pu | 
| reference speed | 3400 r/min | 
| limit speed | 4000 r/min | 
| weight | 1.9 kg | 
| F | 115 | |
| r1,2 min | 1.1 | |
| s max | 2 | |
| da min | 106.5 | |
| Da max | 133.5 | |
| ra max | 1 | 
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