Spindle was crashed, shaft nose was cracked, rotor came loose and rubbed out on rear housing. Rear housing was egged shaped. The taper had 20+ microns of runout.
Northland Tool & Electronics replaced the bearings, ground/plate/ground the rear housing and 50 taper. Kiss ground the front journal and shoulders. Welded and machined the cracks in shaft nose.
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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…