Possible cause of failure:
Bearing failure from contamination.
HSK 63 taper has deep pock mark’s.
Drawbar shaft has spring wear.
The face of the gripper finger ejector pin is worn.
Front bearing spacer is bent.
GPG taper and drawbar shaft.
Clean, inspect overall dimensions.
Replace bearing’s, gripper assembly, o-ring’s, quad ring’s, front bearing spacer.
NTE stock ejector pin.
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…