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
Matsuura MC-510VF Spindle Repair
The Matsuura MC-510VF is an older CNC vertical machining center. It comes equipped with a grease lubricated and coupling driven spindle capable of running up to 8,000 rpm.
This Matsuura MC-510VF spindle arrived at Northland Tool and Electronics where we completed a full breakdown and evaluation. Upon inspection we noted that there was a catastrophic failure of the rear roller bearing, likely due to coolant contamination (rear of spindle coated with residue.) It was also noted that the shaft taper was very worn and had 10-15µ runout. No other dimensional deviations were noted.
The following actions were performed on this Matsuura MC-510VF spindle:
- Clean, inspect overall dimensions
- Kiss grind shaft taper
- Install threaded set screw holes in rear balance ring to enable easier balancing
- Replace bearings, Bellevilles, gripper balls, o-rings, and assembly 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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In this helpful guide to spindle bearing preload, Northland Tool & Electronics will answer all the basic questions about your spindle bearing preload calculations.Read More