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 MoreMatsuura ES-550V Spindle Repair
The Matsuura ES-550V is a high speed CNC vertical machining center. It comes equipped with a grease lubricated and belt driven spindle capable of running up to 15,000 rpm.
CHALLENGE
When this Matsuura ES-550V spindle arrived at our facility we performed a full evaluation of the spindle. After disassembly we determined that the spindle was heavily contaminated with coolant, the front bearing cage was broken, and the drain ports were plugged. We also recommended that the spindle be converted from grease injection lubrication to grease for life. Lastly, the shaft taper and face have wear with 3µ runout in taper.
SOLUTION
The following actions were performed on this Matsuura ES-550V spindle:
- Clean, inspect overall dimensions
- Kiss grind shaft taper
- Replace bearings, bellevilles, o-rings, and assembly screws
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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