249/1250 CAF/W33X
Spherical roller bearing with relubrication featuresSpherical roller bearings can accommodate heavy loads in both directions. They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.
- Accommodate misalignment
- High load carrying capacity
- Relubrication features
- Low friction and long service life
- Increased wear resistance
Description
| SKF performance class | SKF Explorer |
| Bore type | Cylindrical |
Dimensions
| d | 1 250 mm | Bore diameter |
|---|---|---|
| D | 1 630 mm | Outside diameter |
| B | 375 mm | Width |
| d2 | ≈ 1 376 mm | Shoulder diameter of inner ring |
| D1 | ≈ 1 513 mm | Shoulder/recess diameter of outer ring |
| b | 22.3 mm | Width of lubrication groove |
| K | 12 mm | Diameter of lubrication hole |
| r1,2 | min. 7.5 mm | Chamfer dimension |
Abutment dimensions
| da | min. 1 278 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 1 602 mm | Diameter of housing abutment |
| ra | max. 6 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 18 114 kN |
|---|---|---|
| Basic static load rating | C0 | 46 500 kN |
| Fatigue load limit | Pu | 2 500 kN |
| Reference speed | 120 r/min | |
| Limiting speed | 220 r/min | |
| Limiting value | e | 0.2 |
| Calculation factor | Y1 | 3.4 |
| Calculation factor | Y2 | 5 |
| Calculation factor | Y0 | 3.2 |
Mass
| Mass | 2 075 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing interfaces
