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……Read More
Westwind D1410-01 Spindle Repair
The Westwind D1410-01 is a high speed air bearing spindle. It is stator driven and capable of running up to 40,000 rpm.
When Northland Tool & Electronics was first established, our core business was the repair of air bearing spindles. While this is no longer the case, we do still offer rebuild of certain Westwind air bearing spindle models. This particular spindle suffered both an electrical short at the Cannon connector as well as a crash which allowed the shaft thrust face to rub out on the thrust plate. Fortunately, the stator was not damaged, the taper runout was less than 2µ, and we were able to refurbish the thrust plate in our machine shop.
Once all components needing attention were requalified and the spindle had been reassembled, it was run up in our test room and checked for axial and radial load, air and coolant flow, dynamic runout and vibration.
This spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.
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Running this spindle too long caused deformed ball bearings and damage to the outer race Damage to the outer race is consistent with prolonged operation after spindle exhibited initial signs of needing to be rebuilt Every spindle rebuilt by North…Read More