Leeson Spindle Rebuild

Possible cause of failure:
Wheel hub taper is showing wear and contact angle is slightly off.
#3 bearing is slightly scratchy.
Preload is light.

Recommended action:
Clean, inspect overall dimensions.
Replace bearings and add wave spring or shim to stiffen the preload.
Kiss grind the od taper.
Adjust preload, balance, assemble and break in. Final quality control inspection.

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