NSK LZ 24B82 Spindle Repair

NSK LZ 24B82 Spindle Repair


This NSK LZ 24B82 spindle arrived at our facility for complete breakdown and evaluation.  Upon inspection, we noted that the rear bearings had failed and the rear bearing journal was undersized. The drawbar nut was seized to the shaft and needed to be machined off. Looking at the front of the spindle, the front bearings were contaminated.  Lastly, the taper was bellmouthed and the tool only contacts in the rear of the taper.  No other dimensional deviations were noted for this spindle.



The following actions were performed on this NSK LZ 24B82 spindle:

  • Clean all parts of the spindle
  • Replace all bolts, o-rings, and bellevilles
  • Manufacture new drawbar nut
  • Replace bearings
  • Grind, plate, and finish grind the rear shaft journal
  • Kiss grind ID Taper



After reassembly of all components, adjusting bearing preload, and undergoing break-in and testing procedures, this spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.

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