Date:2011-08-06 9:32:06
Condition |
Cause |
Solution |
Breaking of retainer · Wear of pockets or guide · Loosening or breaking of rivet |
Excessive moment load High speed spinning or large fluctuation of speed Poor lubrication Trapping of foreign objects Heavy vibration Poor mounting (cocked bearing) Excessive heat (plastic retainer in particular) |
1. Improvement in load conditions 2. Improvement in lubrication system and lubricant 3. Selection of optimum retainer 4. Improvement in handling 5. Study on rigidity of shaft and housing |