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Category
22220 KCW33
A spherical roller bearing is a highly engineered rolling-element bearing designed to excel in demanding operating conditions. Its defining feature is its self-aligning capability. It automatically compensates for misalignment between the shaft and housing, caused by mounting errors, shaft deflection, or foundation settling (typically up to 1.5° – 3°). This unique ability makes them the ideal solution for applications involving heavy loads, shock loads, and situations where some flexibility is unavoidable.
Spherical Roller Bearing
| ISO | 22220 KCW33 | |
| GOST | 153520 H | |
| SLEEVE NO. | H320 | |
| Bore diameter | d | 100 mm |
| Outside diameter | D | 180 mm |
| Width | B | 46 mm |
| Basic dynamic load rating | C | 186 kN |
| Basic static load rating | C0 | 255 kN |
| Reference speed | 1400 r/min | |
| Limiting speed | 1100 r/min | |
| Mass bearing | 4.746 kg | |
Structural Design
The bearing consists of four key components:
- Inner Ring:Features two raceways with ribs for roller guidance.
- Outer Ring:Has a concave spherical raceway ground into its bore. The center of curvature of this raceway coincides with the bearing center, enabling the self-alignment.
- Rollers:Barrel-shaped (spherical) rollers, either symmetrical or asymmetrical, roll freely within the outer ring’s spherical path, allowing tilt and rotation.
- Cage:Positions and separates the rollers, minimizing friction and guiding rotation. Cages are typically made of pressed steel or machined brass. The bearing houses two rows of rollers for high load capacity.
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