GMN TX80CX142 Spindle Repair

Affectionately known at Northland Tool as a dumbbell spindle , this spindle is not for a dumbbell to put together. The tooling interface is a critical portion of the repair and can only be done correctly with the proper equipment and gauging. We incorporate our grinding department into GMN spindle repairs to insure proper face and taper contact. We are one of the few spindle rebuild companies with this ability. We have received many of these spindles for repair after a competitor has tried to repair it and failed because they are not properly equipped.

Possible cause of failure:

  • Front nut was loose causing runout
  • Front and rear housings are egged
  • Shaft tapers are out of ISO

Repair action:

  • Clean, inspect overall dimensions
  • Replace bearings
  • Grind chrome plate and regrind front and rear housings
  • Kiss grind shaft tapers
  • Adjust preload, balance, assemble and break in
  • Final quality control inspection


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More Case Studies

Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.