Kafo Spindle Repair
Possible cause of failure:
Front quad set is full of coolant sludge causing premature failure.
Taper is worn.
Spindle has the rear rollers and race attached to the shaft with the drive gears
Drawbar bellvilles are broken, drawbar shaft has wear.
Incoming force was 1400 lbs due to broken bellvilles.
Shaft journal where the #3 bearing sits has slight gauling from the inner race when the bearing failed.
The rear nut may have loosened slightly causing it loose preload allowing the inner race to spin.
Clean, inspect overall dimensions.
Replace bearings, o-rings, bellevilles.
Kiss grind taper, dust grind front journal were #3 bearing sits to remove build up.
Grind plate and finish grind the drawbar shaft.
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…