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
Hyundai HIT-400G Spindle Repair
The Hyundai HIT-400G is a gang style CNC turning center. It comes equipped with this grease lubricated and belt driven spindle capable of running up to 6,000 rpm.
This Hyundai HIT-400G spindle was seized incoming. Once we completed the disassembly and inspection, we noted that the spindle interior was flooded with coolant/cutting oil and the grease in all of the bearings was washed out. There was a catastrophic failure of the #2 bearing of the front triset, the cage was destroyed. No significant dimensional deviations were noted on any critical surfaces (journals, bores, taper etc).
The following actions were performed on this Hyundai HIT-400G spindle:
- Clean, inspect overall dimensions
- Replace all bearings, o-rings, and assembly screws
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