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 MoreGamfior DIS E12371 Spindle Repair
The Gamfior Dise12371 is a high speed grinding spindle that is oil lubricated and stator driven capable of running up to 120,000RPM.
CHALLENGE
Our customer sent in this Gamfior DIS E12371 spindle for repair. Once the spindle arrived at Northland Tool we completed a full disassembly and evaluation.
This is what we found:
- Spindle rotated freely but the bearings felt worn when spun by hand
- Coolant pressure failed and the o-rings are deteriorated
- Front bearings separated during removal
- Front bearing journal was heavily worn and had high run out
- ID pilot and face of shaft had high run out
SOLUTION
The following actions were performed on this Gamfior DIS E12371 spindle:
- Clean, inspect overall dimensions
- Replace bolts, o-rings, and bearings
- Grind-Plate-Grind (GPG) ID Pilot
- Kiss grind face due to high run out
- GPG front journal due to high run out
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.
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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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