Possible cause of failure:
A BROKEN ORING ON THE REAR COVER AND THE REAR BEARINGS WERE CONTAMINATED,
THE FRONT BEARINGS FAILED
#2 ID RACE HEAT WELDED TO THE JOURNAL.
THERE IS RUB OUT PRESENT ON THE GMN SEAL SURFACE OF THE SHAFT
THERE IS FRETTING PRESENT ON THE FRONT JOURNAL #1 AND #2 SPOTS.
THE REAR SHOULDER HAS 3-4 Micron OF HIGH SPOTS
Clean, inspect overall dimensions.
Grind, chrome plate and finish grind the shaft.
Grind, chrome plate and finish grind the 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…