NTE has been rebuilding spindles for over 30 years. We handle many types of spindles and this is the first Seida we have ever seen. The spindle is used for optic fabrication and is a very low rpm with a Lovejoy Drive.
A rear nut had tightened up on the preload washer causing bearings to fail.
We replaced the bearings with a shielded precision bearing and kiss ground the front pilot shoulder. Preload was adjusted and the spindle was balanced. The spindle was shipped out and the customer will be sending more in for rebuild.
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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…