Solutions
Brand List
Bearing damage and Solutions
Seizing
Date:2011-08-06 9:20:45
|
Condition |
Cause |
Solution |
|
Bearing generates heat and is seized up by heat disabling spinning. Discoloration, softening, and welding of raceway surface, rolling contact surfaces, and rib surface. |
Dissipation of heat generated by bearing is not enough. Poor lubrication or lubricant improper. Clearance excessively small. Excessive load (or pre-load). Roller skewing and installation error. |
1. Improve dissipation of heat from bearing 2. Selection of suitable lubricant and determination of optimum lubricant feeding rate. 3. Prevention of misalignment 4. Improvement in clearance and pre-load 5. Improvement in operating conditions |
- Photo 4
- Inner ring of double row tapered roller bearing
- Seizing-up discolors and softens inner ring producing stepped wear at spacing equal to distances between the rollers.
- The cause is poor lubrication.
- Rollers of double row tapered roller bearing
- Rollers of same bearing as that of the inner ring shown in Photo 4.
- Discoloration, spalling, and adhesion due to seizing up on rolling contact surfaces and end faces of rollers.
- Outer ring of spherical roller bearing
- Stepped wear due to seizing up of raceway surface.
- The cause is poor lubrication.
- Inner ring of tapered roller bearing
- Large end of the raceway surface and cone back face rib surface are seized up.
- The cause is poor lubrication.
