This spindle failed from contamination and had 8 microns run out on the taper. Our incoming evaluation showed the contamination was entering through the rear of the spindle. We reworked the rear of the spindle to keep the same functionality but remove the possibility of contamination entering the spindle. We kiss ground the taper and assembled the spindle.
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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…