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
Daewoo Puma-350A Spindle Repair
The Daewoo Puma-350A is a CNC turning center with a 4″ bar stock capacity. It comes equipped with a belt driven and grease lubricated spindle capable of running up to 3,000 rpm.
Our customer sent in this Daewoo Puma-350A spindle because of noisy bearings that were continuously getting louder. Upon disassembly, we found that the bearing grease was contaminated with coolant and caused the bearing failure. The rear nut spanner holes were damaged from a previous repair and will need to be addressed. There were no dimensional deviations to note on this spindle.
The following actions were performed on this Daewoo Puma-350A spindle:
- Clean, inspect overall dimensions.
- Replace bearings and o-rings.
- Machine the rear nut spanner holes.
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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