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
Mori Seiki MV-65 Spindle Repair
The Mori Seiki MV-65 is a CNC vertical machining center. It comes standard with a grease lubricated and belt driven spindle capable of running up to 4,000 rpm.
Coolant entered the interior of this Mori Seiki MV-65 spindle causing the grease to wash away from the front roller bearings. Much like running a car without oil once the bearing lubrication is compromised it’s really a matter of time before failure. And fail it did as there was a catastrophic failure of the #1 front roller bearing. Lastly, the housing was full of oil and the shaft ceramic taper had 18-20 microns runout.
The following actions were performed on this Mori Seiki MV-65 spindle:
- Clean, inspect overall dimensions
- Kiss grind the ceramic 40 taper
- Replace bearings, o-rings, and screws
After reassembly of all components, adjusting bearing preload, and undergoing break-in and testing procedures, this spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.
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More Case Studies
Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.
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Downtime is inevitable for any machine, but knowing how to reduce downtime or minimize its likelihood is critical.Read More