Brown & Sharp Spindle Rebuild
The front housing of this spindle was not round and out of ISO specification. This deforms the outer race of the bearings causing stress to the balls and raceways of the bearings. Eventually the bearings wear prematurely to the point of failure. We repair this condition in our grinding department by grinding out the housing bore oversized, chrome plating it, then finish grinding it to size while maintaining parallelism with the rear housing bore.
Possible cause of failure:
Rear bearing failure
Front housing egged
Clean, inspect overall dimensions.
Grind plate grind front housing
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…