This spindle failed due to coolant contamination. The grease was washed away from the front bearings causing them to fail. We reviewed steps that can be taken to prevent this type of failure with our customer. The spindle had run for a significant amount of time in the machine so it was decided that the failure was not a design flaw. We will monitor the spindles performance in the future to see if a design change to prevent contamination is warranted.
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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…