Mori Seiki NL 2000 Bearing Failure



CHALLENGE

Cause of failure: Customer indicated that the spindle had become noisy. Outer races of #1 & #2 bearings of front triset had heat discoloration. Grease was contaminated & degraded. Magnetic rotor has some corrosion.  

SOLUTION

Repair action: Clean, inspect overall dimensions. Replace bearings, o-rings & assembly screws. Adjust preload, assemble and break in. Final quality control inspection.

DETAILED CAUSE OF FAILURE

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