NTN 30308A Roller Bearings
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Product Details
| Bearing number | NNCF4948CV |
| Size (mm) | 240x320x80 |
| Bore Diameter (mm) | 240 |
| Outer Diameter (mm) | 320 |
| Width (mm) | 80 |
| d | 240 mm |
| D | 320 mm |
| B | 80 mm |
| C | 80 mm |
| b1 | 8 mm |
| d1 | 270 mm |
| r1 min. | 2,1 mm |
| r2 min. | 2,1 mm |
| r3 min. | 2,1 mm |
| r4 min. | 2,1 mm |
| D1 | 292 mm |
| E | 299,46 mm |
| K | 4 mm |
| ba min. | 251 mm |
| Da max. | 308 mm |
| das rec. | 261 mm |
| ra max. | 2 mm |
| rb max. | 2 mm |
| S | 5 mm |
| Weight | 18,5 Kg |
| Basic dynamic load rating (C) | 781 kN |
| Basic static load rating (C0) | 1760 kN |
| Fatigue load limit (Pu) | 173 |
| Reference speed | 850 r/min |
| Limiting speed | 1100 r/min |