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 MoreFadal VMC-3016 Spindle Repair
The Fadal VMC-3016 is a vertical machining center used in many shops. It is equipped with a grease-lubricated, 10,000 RPM spindle with a CAT40 tooling taper.
CHALLENGE
This Fadal VMC-3016 spindle arrived at Northland Tool and Electronics and felt rough when turned by hand. Upon disassembly, it was found that the bearings were all heavily over-greased. The rear bearings had grease that was contaminated with a black particulate. The drawbar pullforce was low on the incoming spindle and upon inspection, there were many broken Belleville washers. There were no dimensional deviations found on any critical surfaces.
SOLUTION
The following actions were performed on this Fadal VMC-3016 spindle repair:
- Clean all parts of the spindle
- Replace all bolts, o-rings, and bellevilles
- Replace bearings
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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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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