248/670 CAMA/W20
Spherical roller bearingSpherical 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. They can be used in a modular system, including housings, sleeves and nuts.
- Accommodate misalignment
- High load carrying capacity
- Low friction and long service life
- Extensive range available sealed for increased reliability
- Increased wear resistance
Description
| SKF performance class | SKF Explorer |
Dimensions
| d | 670 mm | Bore diameter |
|---|---|---|
| D | 820 mm | Outside diameter |
| B | 150 mm | Width |
| d2 | ≈ 726 mm | Shoulder diameter of inner ring |
| D1 | ≈ 772 mm | Shoulder/recess diameter of outer ring |
| K | 9 mm | Diameter of lubrication hole |
| r1,2 | min. 4 mm | Chamfer dimension |
Abutment dimensions
| da | min. 685 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 805 mm | Diameter of housing abutment |
| ra | max. 3 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 3 598 kN |
|---|---|---|
| Basic static load rating | C0 | 9 500 kN |
| Fatigue load limit | Pu | 655 kN |
| Reference speed | 400 r/min | |
| Limiting speed | 700 r/min | |
| Limiting value | e | 0.16 |
| Calculation factor | Y1 | 4.2 |
| Calculation factor | Y2 | 6.3 |
| Calculation factor | Y0 | 4 |
Mass
| Mass | 175 kg |
Tolerance class
| Dimensional tolerances | Normal |
| Radial run-out | Normal |
Tolerances and clearances
Bearing interfaces
