Takamaz 28310R Spindle Repair

Takamaz 28310R Spindle Repair

The Takamaz 28310R spindle is oil mist lubricated, belt driven, and capable of running up to 1,800 rpm.



CHALLENGE

Our customer stated that the spindle failed due to end play. However, our incoming tests showed no end play present. The bearings sounded very scratchy when spun by hand do to usage fatigue.  After closer inspection, we noted that the oil supply lines were broken off, pinched, and missing.  The keyed taper had pitting and fretting and there was some slight damage to one of the hydraulic nut holes.  No other dimensional deviations were noted for this repair.

 

SOLUTION

The following actions were performed on this Takamaz 28310R spindle:

  • Clean, inspect overall dimensions
  • Replace bearings, o-rings, assembly screws, and brass oil lines
  • Machine the taper
  • Machine the hydraulic nut

 

RESULT

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.

DETAILED CAUSE OF FAILURE

  • Broken/ cut off oil lubrication lines

  • Rotating parts laid out for evaluation

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