Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 618/4
W 618/4
Dimensions
| d | 4 | mm | |
| D | 9 | mm | |
| B | 2.5 | mm | |
| d1 | ≈ | 5.2 | mm |
| D1 | ≈ | 7.5 | mm |
| r1,2 | min. | 0.1 | mm |
Abutment dimensions
| da | min. | 4.8 | mm |
| da | max. | 5.1 | mm |
| Da | max. | 8.2 | mm |
| ra | max. | 0.1 | mm |
Calculation data
| Basic dynamic load rating | C | 0.364 | kN | |
| Basic static load rating | C0 | 0.114 | kN | |
| Fatigue load limit | Pu | 0.005 | kN | |
| Reference speed | 140000 | r/min | ||
| Limiting speed | 85000 | r/min | ||
| Calculation factor | kr | 0.02 | ||
| Calculation factor | f0 | 6.5 |
Mass
| Mass bearing | 0.0006 | kg |