120,000 rpm Stator driven ID Grinding Spindle
This spindle was crashed destroying the front nut and bearings. The pilot and face had run out. We manufactured a new front nut in our machining department. We ground plate ground the pilot and kiss ground the face. We then assembled the spindle, ran it at 120,000 rpm and balanced it.
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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…