Anca Spindle Repair

This Anca reached the end of the bearings usable service life. Northland Tool and Electronics was able to fix the wear damage to the spindle taper by kiss grinding it on one of our Kellenburger grinders. We rebuilt the spindle in our clean room with new bearings and test ran it in our test room. The spindle is currently in a storage box as a spare until needed.

Possible cause of failure:

  • Front bearings are worn
  • Taper has runout

Repair action:

  • Clean, inspect overall dimensions
  • Replace bearings
  • Kiss grind taper
  • 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.