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 VX-1000 Spindle Repair
The Matsuura VX-1000 is a CNC vertical machining center. It can come equipped with this grease injected and coupling driven spindle capable of running up to 15,000RPM.
CHALLENGE
Our customer sent in this Matsuura VX-1000 spindle for repair. Once the spindle arrived at Northland Tool we completed a full disassembly and evaluation.
This is what we found:
- Spindle was difficult to rotate by hand incoming
- There was coolant contamination in front bearings (PIC 3)
- #2 bearing catastrophically failed due to coolant contamination (PIC 2)
- The draw bar spring had a very tight fit but functions properly
- This spindle had CA35 off set bearings with an offset pair of spacers and machined grooved bearings
designed for grease injection (PIC 1) - Grippers were worn and need to be replaced (PIC 4)
SOLUTION
The following actions were performed on this Matsuura VX-1000 spindle:
- clean and inspect overall dimensions
- Replace bolts, o-rings, bearings, and grippers
RESULT
After reassembly of all components and adjusting bearing preload 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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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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