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 HX-300i Spindle Repair
The Kitamura HX-300i is a high production CNC horizontal machining center. It can come equipped with this oil lubricated, belt driven spindle capable of running up to 10,000 RPM.
CHALLENGE
Our customer sent in this Kitamura HX-300i spindle stating that the spindle had been crashed a few times and had poor part finish. After a full breakdown and evaluation, we noted that the taper had high run out and was more of an oval shape on the air gauge than round. We also found that there was oil contamination in the bearings which was a dark brown color.
SOLUTION
The following actions were performed on this Kitamura HX-300i spindle:
- Clean, inspect overall dimensions
- Replace bolts, bearings, and o-rings
- Grind, plate, grind (GPG) the ID tooling taper
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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