Possible cause of failure:
Bearing failure from contamination.
Main drawbar tube is cracked in several places where the rotary union sits.
Drawbar force is 1600lbs
Taper needs a cosmetic kiss
Customer supplied CT tooling and retension knob
Clean, inspect overall dimensions.
Replace gripper balls.
Replace OEM drawtube.
Replace OEM drawbar springs.
Kiss grind taper
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…