Catastrophic bearing failure was the main cause of this spindle malfunction Continue reading to learn how Northland Tool performed this repair and converted a Weiss GHK 176239 spindle from grease-injected to permanent grease lubrication……Read More
Mighty Viper 1600A Spindle Repair
The Mighty Viper 1600A is a large CNC vertical machining center. It comes standard with a grease lubricated and belt driven spindle that is capable of running up to 6,000 rpm.
This Mighty Viper 1600A spindle was received already disassembled. Upon inspection, we noted that there was damage to the sensor ring that occurred during breakdown. The damage was not severe. It was also noted, that there were broken bellevilles in the drawbar, the unit would not actuate correctly for incoming testing. The drawbar also had scoring marks from the broken bellevilles. The grippers and gripper post were worn and will need to be replaced. Lastly, the spindle was missing the rear key stock for the sensor ring. There were no other dimensional deviations to note for this repair.
The following actions were performed on this Mighty Viper 1600A spindle:
- Clean, inspect overall dimensions
- Replace bolts, bearings, o-rings, grippers, gripper post, belevilles, and drawbar
- Manufacture a rear key stock
- Replace cork front seal
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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Mighty Viper Spindle Repair
Possible cause of failure: #1 & #2 front bearings are worn and are severely fretted on the OD. Rear balance ring is oversized and fretted. Drawbar shaft is worn. Drawbar has low force Tape [...]
Mighty Comet VMC-1000 Spindle Repair
We completed a full breakdown and evaluation of this Mighty Comet VMC-1000 spindle. Upon assessment of the spindle we noted that eh bearing grease in… [...]
Running this spindle too long caused deformed ball bearings and damage to the outer race Damage to the outer race is consistent with prolonged operation after spindle exhibited initial signs of needing to be rebuilt Every spindle rebuilt by North…Read More