Bearings, units and housings -- Ball bearings -- Thrust ball bearings -- Thrust ball bearings, double direction -- SKF 54308 + U 308
54308 + U 308
Dimensions
| d | 30 | mm | |
| D | 78 | mm | |
| H | 54.1 | mm | |
| H1 | 59 | mm | |
| D1 | ≈ | 42 | mm |
| D2 | 60 | mm | |
| D3 | 82 | mm | |
| B | 12 | mm | |
| C | 8.5 | mm | |
| R | 64 | mm | |
| s | 23.5 | mm | |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 0.6 | mm |
Abutment dimensions
| da | 40 | mm | |
| Da | max. | 60 | mm |
| ra | max. | 1 | mm |
| rb | max. | 0.6 | mm |
Calculation data
| Basic dynamic load rating | C | 61.8 | kN | |
| Basic static load rating | C0 | 122 | kN | |
| Fatigue load limit | Pu | 4.5 | kN | |
| Reference speed | 2200 | r/min | ||
| Limiting speed | 3000 | r/min | ||
| Minimum load factor | A | 0.077 |
Mass
| Mass bearing (including seat washer where applicable) | 1.17 | kg |