Bearings, units and housings -- Ball bearings -- Self-aligning ball bearings -- Self-aligning ball bearings -- SKF 1304 ETN9
1304 ETN9
Dimensions
| d | 20 | mm | |
| D | 52 | mm | |
| B | 15 | mm | |
| d1 | ≈ | 33.3 | mm |
| D1 | ≈ | 44.6 | mm |
| r1,2 | min. | 1 | mm |
Abutment dimensions
| da | min. | 27 | mm |
| Da | max. | 45 | mm |
| ra | max. | 1 | mm |
Calculation data
| Basic dynamic load rating | C | 14.3 | kN | |
| Basic static load rating | C0 | 4 | kN | |
| Fatigue load limit | Pu | 0.21 | kN | |
| Reference speed | 26000 | r/min | ||
| Limiting speed | 18000 | r/min | ||
| Permissible angular misalignment | a | 3 | ° | |
| Calculation factor | kr | 0.04 | ||
| Calculation factor | e | 0.28 | ||
| Calculation factor | Y0 | 2.5 | ||
| Calculation factor | Y1 | 2.2 | ||
| Calculation factor | Y2 | 3.5 |
Mass
| Mass bearing | 0.16 | kg |