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 SV150 Spindle Repair
The Hardinge SV150 is a CNC turning center made for 2-axis cutting. It comes equipped with a grease lubricated and pulley driven spindle capable of running up to 6,000 rpm.
CHALLENGE
Our customer indicated that this Hardinge SV150 spindle was noisy in operation. Upon disassembly and evaluation of the spindle we found that the bearings had failed from contamination (likely coolant). We noted that the bearings still contained grease but it was severely degraded. It was also noted that the encoder ring had several damaged teeth and the mounting bolts were missing. No dimensional deviations were found on this spindle.
SOLUTION
The following actions were performed on this Hardinge SV150 spindle:
- Clean all parts of the spindle
- Replace all bolts and o-rings
- Replace encoder ring
- 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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