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 KV40A Spindle Repair
The Kia KV40A is an older CNC vertical machining center. It comes fitted with a grease lubricated and belt driven spindle capable of running up to 6,000 rpm.
CHALLENGE
This customer called us because his Kia KV40A spindle was making too much noise when they were running it slow at 1,000 RPM. The drawbar had been replaced previously as well.
We picked the spindle up at the customer’s location near our facility and brought it back to our facility where we thoroughly cleaned and inspected the spindle. We determined that there was a front bearing failure from them reaching the end of their expected life. The taper and gripper fingers were also worn. No other dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Kia KV40A spindle:
- Clean all parts of the spindle
- Replace bearings, o-rings, and assembly screws
- Replace gripper fingers
- Kiss grind the taper
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.
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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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