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 MoreKia VX-400 Spindle Repair
The Kia VX-400 is a CNC vertical machining center. It can come equipped with this grease lubricated and coupling driven spindle capable of running up to 12,000RPM.
CHALLENGE
Our customer sent in this Kia VX-400 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
- Front bearings were washed out and the bearings catastrophically failed (Pic 1)
- Rear bearings were contaminated with particulates from the front bearings
- ID 40 taper had high run out and poor contact
- The grippers were in good condition and will be re-used
SOLUTION
The following actions were performed on this Kia VX-400 spindle:
- Clean, inspect overall dimensions
- Replace bolts, o-rings, bearings, and bellevilles
- Grind-Plate-Grind ID 40 taper
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.
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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