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 MoreMatsuura R.Plus-800 Spindle Repair
The Matsuura R.Plus-800 is a CNC vertical machining center. It comes equipped with a grease lubricated and belt driven spindle capable of running up to 12,000 rpm.
CHALLENGE
This Matsuura R.Plus-800 spindle was sent to us for a full breakdown and evaluation. Upon inspection we noted a catastrophic failure of the #1 front bearing. The bearings most likely failed from usage fatigue. It was also noted that the drawbar shaft had severe wear in the area were the gripper fingers attach and ride. The gripper fingers were also worn at the attachment point for the drawbar. Lastly, the taper was worn and will need to be ground.
SOLUTION
The following actions were performed on this Matsuura R.Plus-800 spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, crush rings, grippers, and bolts
- Kiss grind the tooling taper
RESULT
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.
DETAILED CAUSE OF FAILURE
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