The incorrect tool was inserted during tool change causing the spindle to crash. This caused the tool to spin in the taper shearing off one integral drive dog and severely damaging the second. The BIG PLUS taper and face were also severely damaged. We were able to repair the drive dogs, taper and face in our grinding/machining departments using certified BIG PLUS gauging. We then rebuilt the spindle to strict BIG PLUS specifications. Our repair provided our customer with a spindle that meets or exceeds OEM specifications for considerably less money than their only other option of an OEM replacement spindle. Our expedited service reduced machine downtime by 16 weeks over the OEM option.
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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…