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 MoreFryer VMC Spindle Repair
This Fryer VMC spindle is grease lubricated, belt driven, and capable of running up to 8,500 rpm.
CHALLENGE
This Fryer spindle was very noisy and bearings felt scratchy when spun by hand incoming. The tail end had a few high spots of run out and the spindle arrived missing the drive dogs and draw bar. After completing a full breakdown and evaluation, we noted that the pulley keys were worn out and the front and rear housings were worn out of ISO. Lastly, all the bearings were heavily contaminated with a brown particulate. No other dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Fryer VMC spindle:
- Clean, inspect overall dimensions
- Replace bearings, bolts, and o-rings
- Grind, Chrome Plate, and Finish Grind the 115mm Front and Rear Housings
- Manufacture new pulley keys
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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