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 MoreHardinge VMC 600P3 Spindle Repair
The Hardinge VMC 600P3 is a CNC vertical machining center. It comes equipped with a grease lubricated and pulley driven spindle capable of running up to 8,000 rpm.
CHALLENGE
When this Hardinge VMC 600P3 spindle arrived at Northland Tool and Electronics, the bearings were very noisy when the shaft was rotated by hand. After the spindle was disassembled, our evaluation showed the #1 and #2 front bearings failed from coolant contamination. It was also noted that the #1 bearing cage was cracked. No dimensional deviations were found on this spindle.
SOLUTION
The following actions were performed on this Hardinge VMC 600P3 spindle:
- Clean all parts of the spindle
- Replace all bolts and o-rings
- Replace bearings
- During assembly we used a modified front cover (has extra fitting port) from a second spindle our customer sent in
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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