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 MoreKitamura Mycenter H-400 Spindle Repair
The Kitamura Mycenter H-400 is a CNC horizontal machining center with a two pallet changing system and 4th axis capabilities. It comes equipped with an oil mist lubricated and gear driven spindle capable of running up to 10,000 rpm.
CHALLENGE
When this Kitamura Mycenter H-400 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. Upon inspection, we found that the front bearings failed from contamination. We then completed an inspection of all critical dimensions (bearing journals, housing, taper, etc.) and found that the taper was worn and would need to be addressed.
SOLUTION
The following actions were performed on this Kitamura Mycenter H-400 spindle:
- Clean, inspect overall dimensions
- Replace all bolts and o-rings
- Replace bearings
- 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.
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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