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 ES450 Spindle Repair
The Matsuura ES450 is a CNC horizontal machining center. It comes equipped with a grease lubricated and coupling driven spindle that is capable of running up to 15,000 rpm.
CHALLENGE
When this Matsuura ES450 spindle arrived at Northland Tool and Electronics we noted that it spun very roughly and the bearings felt very worn when spun by hand. After a thorough breakdown and evaluation of the spindle, we noted that the rear roller was contaminated with a brown particulate. The front bearings were also contaminated with a brown particulate and #2 bearing was destroyed. We also noted that the housing had clumps of black material within it as well. Lastly, the grippers were very worn and needed to be replaced. No dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Matsuura ES450 spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and assembly screws
- Replace bellevilles and grippers
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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