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 MoreYCM FV-102A Spindle Repair
The YCM FV-102A boasts a hi-speed and hi-power spindle designed for production CNC machining. It can come fitted with this grease lubricated and coupling driven spindle capable of running up to 12,000 RPM.
CHALLENGE
This YCM FV-102A spindle rotated freely when it arrived at Northland Tool, but the bearings felt worn when spun by hand. After completing a full disassembly and evaluation, we recorded that there was a thick brown sludge in all of the bearings.
We then performed a full dimensional evaluation and found a few issues. First, the ID taper had low spots and did not pass the air gauge testing. Second, the drive dogs were worn and in need of repair. Lastly, the grippers and gripper post were worn.
SOLUTION
The following actions were performed on this YCM FV-102A spindle:
- Clean, inspect overall dimensions
- Replace bearings, bolts, o-rings, seals, and grippers
- Grind, plate, grind (GPG) the 40 ID Taper
- Repair damaged drive dogs
RESULT
After reassembly of all components and adjusting bearing preload, we put the spindle through a rigorous break-in and testing procedure to make sure it passes our final quality inspection.
This spindle passed our final quality inspection and was 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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