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
Chiron FZ 08 Spindle Repair
The Chiron FZ 08 is a compact CNC vertical machining center. It comes fitted with a grease lubricated and coupling driven spindle capable of running up to 20,000 rpm.
This Chiron FZ 08 spindle was received as just a shaft, bearings, and drawbar. Upon inspection, we found that both the front and rear bearings were contaminated with particulate. The HSK taper and face measured high run out and will need grinding. No other dimensional deviations were noted for this repair.
The following actions were performed on this Chiron FZ 08 spindle:
- Clean, inspect overall dimensions
- Replace bolts, bearings and gripper assembly
- Grind, chrome plate, and finish grind the HSK Taper
- Kiss Grind HSK Face
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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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