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
Sharp SVL-2416 Spindle Repair
The Sharp SVL-2416 is a CNC machining center. It comes fitted with this grease lubricated and pulley driven spindle capable of running up to 10,000 RPM.
This Sharp SVL-2416 spindle rotated freely when it arrived at Northland Tool, but the bearings felt worn and were noisy when spun by hand. After performing a full disassembly and evaluation, we noted that the rear OD coolant o-rings were sheared in one spot on both of the o-rings. This may have happened during the installation process and allowed coolant to enter the spindle through the rear of the spindle. The front and rear bearings were contaminated with liquid and have been partially washed out.
The following actions were performed on this Sharp SVL-2416 spindle:
- Clean, inspect overall dimensions
- Replace bearings, bolts, and o-rings
After reassembly of all components and adjusting bearing preload, we put the spindle through a rigorous break-in and testing procedure to make sure it passes our final quality inspection. See below for the passing test reports:
Front Bearings Vibration Analysis Spectrum: Rear Bearings Vibration Analysis Spectrum:
This spindle passed our final quality inspection and was returned to our customer with a 1-year warranty.
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