The Bridgeport Torq-Cut 22 is a smaller CNC vertical machining center. It comes fitted with a grease lubricated and belt driven spindle capable of running up to 7,500 rpm.
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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More Case Studies
Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.
It’s a fact of machining — eventually, even top-of-the-line turning machines will experience a spindle failure. Spindles endure tension, torsion, heavy loads, and speeds up to and beyond 150,000 RPM, to name a few of the standard stressors.
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