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Heald Red Head Spindle Rebuild
Possible cause of failure:
- Spindle was crashed
- Pilot has 8 microns runout
- Ball cage is loose with varying ball sizes
Repair action:
- Clean, inspect overall dimensions
- Replace bearings and balls
- Grind chrome plate and regrind pilot
- Grind chrome plate and regrind ball cage ID
- Adjust preload, balance, assemble and break in
- Final quality control inspection
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