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 MoreSharp SV-2412 Spindle Repair
The Sharp SV-2412 is a high production CNC vertical machining center. It can come equipped with this grease lubricated spindle that is capable of running up to 6,000 RPM.
CHALLENGE
Our customer sent in this Sharp SV-2412 spindle stating that it had been crashed several times but was not in a crash when it seized. We then completed a full breakdown and evaluation, where we noted that the rear locking nut had seized against the rear cover causing the spindle to seize. The bearings were in good shape and the grease was slightly old but still had life. During our evaluation of the critical dimensions, we recorded that the grippers were worn and the front ID taper had high run out.
SOLUTION
The following actions were performed on this Kessler 000.625.138 spindle:
- Clean, inspect overall dimensions
- Replace bolts, o-rings, bearings, grippers, and bellevilles
- Kiss Grind front ID taper
- Remove the broken bolts in the rear locking nut and chase the threads
- Chase threads on the rear ID shaft nut
RESULT
After reassembly of all components and adjusting bearing preload, we put the spindle through a rigorous break-in and testing procedure to make sure it passes our final quality inspection.
This spindle passed our final quality inspection and was returned to our customer with a 1-year warranty.
Does your spindle need repair? GET A QUOTE TODAY
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.
Read More