Possible cause of failure:
Front and rear bearing from contamination.
Fronts are rusted, rear bearings are washed out from coolant.
Clean, inspect overall dimensions.
Replace bearings with sealed bearings.
Adjust preload, balance, assemble and break in. Final quality control inspection.
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Catastrophic bearing failure was the main cause of this spindle malfunction
Continue reading to learn how Northland Tool performed this repair and converted a Weiss GHK 176239 spindle from grease-injected to permanent grease lubrication…