Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Double row full complement cylindrical roller bearings -- Cylindrical roller bearings, double row, full complement SKF NNCF 4912 CV
NNCF 4912 CV
Dimensions
| d | 60 | mm | |
| D | 85 | mm | |
| B | 25 | mm | |
| d1 | ≈ | 70.5 | mm |
| D1 | ≈ | 73.5 | mm |
| b1 | 4.5 | mm | |
| K | 3.5 | mm | |
| s | max. | 1 | mm |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 1 | mm |
Abutment dimensions
| da | min. | 64.7 | mm |
| das | 67.6 | mm | |
| Da | max. | 80.5 | mm |
| ra | max. | 1 | mm |
| rb | max. | 1 | mm |
Calculation data
| Basic dynamic load rating | C | 78.1 | kN | |
| Basic static load rating | C0 | 137 | kN | |
| Fatigue load limit | Pu | 14.3 | kN | |
| Reference speed | 3600 | r/min | ||
| Limiting speed | 4500 | r/min | ||
| Calculation factor | kr | 0.25 |
Mass
| Mass bearing | 0.48 | kg |