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
Hardinge VMC 600P3 Spindle Repair
The Hardinge VMC 600P3 is a CNC vertical machining center. It comes equipped with a grease lubricated and pulley driven spindle capable of running up to 8,000 rpm.
When this Hardinge VMC 600P3 spindle arrived at Northland Tool and Electronics, the bearings were very noisy when the shaft was rotated by hand. After the spindle was disassembled, our evaluation showed the #1 and #2 front bearings failed from coolant contamination. It was also noted that the #1 bearing cage was cracked. No dimensional deviations were found on this spindle.
The following actions were performed on this Hardinge VMC 600P3 spindle:
- Clean all parts of the spindle
- Replace all bolts and o-rings
- Replace bearings
- During assembly we used a modified front cover (has extra fitting port) from a second spindle our customer sent in
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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