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 MoreHardinge GX 1000 OSP Spindle Repair
The Hardinge GX 1000 OSP is a CNC vertical machining center. It can come equipped with this grease lubricated and belt driven spindle capable of running up to 10,000RPM.
CHALLENGE
Our customer sent in this Hardinge GX 1000 OSP spindle for repair stating the spindle was noisey. Once the spindle arrived at Northland Tool we completed a full disassembly and evaluation.
This is what we found:
- Spindle rotated freely but felt worn when spun by hand
- The grease in all of the front bearings was yellow and contaminated by a black particulate (Pic 1)
- Roller cage on rear roller was split and the rolling elements catastrophically failed (Pic 2 + 3)
- Tail end of spindle was heavily contaminated by a black sludge
SOLUTION
The following actions were performed on this Hardinge GX 1000 OSP spindle:
- Clean, inspect overall dimensions
- Replace bolts, o-rings, and bearings
RESULT
After reassembly of all components and adjusting bearing preload 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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