Umbra S.30.084 Spindle Repair

Umbra S.30.084 Spindle Repair

This Umbra S.30.084 spindle come grease lubricated and stator driven making it capable of running up to 50,000 RPM.


This Umbra S.30.084 spindle rotated freely when it arrived at Northland Tool, but the bearings felt worn when spun by hand.  After performing a full breakdown and evaluation, we noted that the front bearing felt very worn.  The grippers had a few broken fingers so no incoming pull force was taken.  Lastly, the field passed our incoming motor analyzer test.  No dimensional deviations were noted for this repair.


Umbra S.30.084 Spindle Repair

Broken gripper fingers



The following actions were performed on this Umbra S.30.084 spindle:

  • Clean, inspect overall dimensions
  • Replace bearings, bolts, o-rings, bellevilles, and grippers



After reassembly of all components and adjusting bearing preload, we put the spindle through a rigorous break-in and testing procedure to make sure it passes our final quality inspection.

Motor Analyzer Summary:

Umbra S.30.084 Spindle Repair

This spindle passed our final quality inspection and was returned to our customer with a 1-year warranty.


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