How to solve the bearings’ adjustment resulted in excessive preload?
- When adjusting the axial clearance or preload in a bearing arrangement, overtightening the adjustment device (lock nut) can result in excessive preload and excessive operating temperatures.
- Excessive preload will also increase the frictional moment in the bearings.
- Check with the equipment manufacturer for the proper mounting procedures to set the end-play (axial clearance) or preload in the equipment.
- Use a dial indicator to measure the axial shaft movement (during and) after adjustment.