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 MoreYama Seiki GLS-2000 LYS Spindle Repair
The Yama Seiki GLS-2000 LYS is a high production CNC turning center. It comes fitted with a grease lubricated and stator driven spindle capable of running up to 4,500 rpm.
CHALLENGE
The first thing we noticed on this Yama Seiki GLS-2000 LYS spindle had bearings that were noisy when rotated by hand in assembly incoming. The stator (field) passed all incoming electrical testing and the front bearing housing cannot be accessed without removing the rotor from the shaft. This spindle has a very thin-walled rotor which is very susceptible to damage. Unfortunately this occurred during multiple attempts at removal. Lastly, our customer had sourced a complete spindle parts kit from the OEM. No dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Yama Seiki GLS-2000 LYS spindle:
- Clean, inspect overall dimensions
- Complete assembley of customer-supplied spindle parts kit
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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