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 MoreSetco 4003Y Spindle Repair
Our customer runs several of these Setco 4003Y spindles and has been for decades. They are a grease lubricated and belt driven spindle that is capable of running up to 3,500 rpm. Eventually the threads for the tool holder wear out. We are able to fix this problem for them with out the cost of manufacturing a new shaft. This can be done on most spindle models and is a fairly common problem on surface grinding spindles.
CHALLENGE
This Setco 4003Y spindle was sent in for a full breakdown and evaluation. After finishing the disassembly, we noted that the bearings were severely contaminated. The shaft taper also had 4 microns of runout that will need to be addressed. No other dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Setco 4003Y spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and assembly screws
- Kiss grind shaft taper
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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