Smith Renaud BA-0025 Spindle Repair

Smith Renaud BA-0025 Spindle Repair

Northland Tool and Electronics has been rebuilding these Smith Renaud BA-0025 spindles for our customer for over 15 years. When we first started our repair program with them we would get 2 to 4 spindles to repair per month. We worked closely with them to eliminate main causes of failure.



CHALLENGE

This Smith Renaud BA-0025 spindle was sent in for a full breakdown and evaluation of the spindle.  Upon inspection, we found that the bearings had failed due to severe contamination.  The shaft journals and housing were both out of ISO and would need to be addressed for the rebuild.  No other dimensional deviations were noted for this repair.

 

SOLUTION

The following actions were performed on this Okuma MC-V4020 spindle:

  • Clean all parts of the spindle
  • Replace all bolts, o-rings, and bellevilles
  • Install an air purge system to both the front and rear of the spindle
  • Rework the labyrinth
  • Grind, chrome plate, and finish grind the shaft journals and housing

 

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.

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