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 MC-800VG Spindle Repair
This spindle was shipped to us by a customer in Latvia. It’s not uncommon for us to receive spindles from outside the United States but this was our first Latvia repair.
CHALLENGE
This Matsuura MC-800VG did not spin freely upon arriving to Northland Tool and Electronics. We noted that the spindle was previously taken apart by the customer and re-assembled. After disassembly and evaluation we noted that the #1 bearing had failed. The Big Plus taper was damaged and showing signs of wear. We also noted that the gripper fingers were worn and the shaft threads were slightly damaged.
SOLUTION
The following actions were performed on this Matsuura MC-800VG spindle:
- Clean, inspect overall dimensions
- Replace bearings, orings, crush rings, and screws
- Grind, chrome plate, and finish grind the Big Plus taper
- Repair shaft threads
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.
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