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 MoreSatisloh SPS-55 Spindle Repair
This Satisloh SPS-55 spindle is grease lubricated, coupling driven, and capable of running up to 2,000 rpm.
CHALLENGE
Our customer indicated that this Satisloh SPS-55 spindle had noisy bearings during operation. Upon closer inspection, we noted that there was a failure of all 4 seals allowing significant contamination into the bearings. The 14mm seal journal on the tail of the spindle shaft was worn and the spindle housing bore had integral outer bearing races which will need to be modified to accept standard size bearings. No other dimensional deviations were noted for this repair.
SOLUTION
The following actions were performed on this Satisloh SPS-55 spindle:
- Clean, inspect overall dimensions
- Grind, chrome plate, and finish grind the 14mm seal journal to original spec to insure proper seal fit/function
- Machine and finish grind the bearing housing bore to accept standard high-precision bearings
- Manufacture new inner and outer bearing spacers
- Manufacture a new bearing capture spacer and ring
- Replace bearings, seals, air fittings, o-rings, and stainless steel assembly screws
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
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