22311 E/VA405
Spherical roller bearing for vibratory applications, 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. This bearing design offers excellent performance in many types of vibrating machinery. 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
- Accommodate very high vibration levels
- Low friction and long service life
- Increased wear resistance
Description
| SKF performance class | SKF Explorer |
| Bore type | Cylindrical |
Dimensions
| d | 55 mm | Bore diameter |
|---|---|---|
| D | 120 mm | Outside diameter |
| B | 43 mm | Width |
| d2 | ≈ 70.1 mm | Shoulder diameter of inner ring |
| D1 | ≈ 102 mm | Shoulder/recess diameter of outer ring |
| b | 5.5 mm | Width of lubrication groove |
| K | 3 mm | Diameter of lubrication hole |
| r1,2 | min. 2 mm | Chamfer dimension |
Abutment dimensions
| da | min. 66 mm | Diameter of shaft abutment |
|---|---|---|
| Da | max. 109 mm | Diameter of housing abutment |
| ra | max. 2 mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 280 kN |
|---|---|---|
| Basic static load rating | C0 | 280 kN |
| Fatigue load limit | Pu | 30 kN |
| Reference speed | 4 300 r/min | |
| Limiting speed | 5 600 r/min | |
| Limiting value | e | 0.35 |
| Calculation factor | Y1 | 1.9 |
| Calculation factor | Y2 | 2.9 |
| Calculation factor | Y0 | 1.8 |
| Permissible rotational acceleration for oil lubrication | 765 m/s² | |
| Permissible linear acceleration for oil lubrication | 255 m/s² |
Mass
| Mass | 2.45 kg |
Tolerance class
| Dimensional tolerances | Normal, bore to P5 and outside diameter P6 |
| Radial run-out | Normal |
Tolerances and clearances
Bearing interfaces
