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 MoreGMN TS60X148 Spindle Repair
This GMN TS60X148 spindle is out of a Haas universal grinding machine. These machines are usually used for saw blade sharpening. We have done several of this type of spindle for our customers. They are belt driven, grease lubricated, and can run up to 5,600 rpm.
CHALLENGE
This GMN TS60X148 spindle arrived at Northland Tool and Electronics for a full breakdown and evaluation. Upon inspection, we noted that the bearings failed from severe contamination. They were contaminated for so long that the were beginning to rust. The rear shaft pulley was damaged and the rear housing was tapered 0/-100 microns. No other dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this GMN TS60X148 spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and assembly screws
- Machine spanners holes in 3 nuts
- Grind, chrome plate, and finish grind the shaft pulley journal
- Dust grind rear housing
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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