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 MoreHeald Red Head 405 Spindle Repair
This Heald Red Head 405 spindle is oil mist lubricated, pulley driven, and is capable of running up to 25,000 rpm.
CHALLENGE
Our customer sent in this stated they suspected that the previous rebuilder may have modified the ID threads for the pilot of the shaft. They had gotten a tool stuck in the pilot that was still stuck when we received the spindle. The tool was very difficult to remove and it required the spindle to be disassembled to allow a better hold on the shaft to remove the tool. After the tool was removed it was found that the Pilot ID and threads had not been modified and will work for the customer as is.
SOLUTION
The following actions were performed on this Heald Red Head 405 spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and 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
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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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