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
Doosan Puma MX2600ST Spindle Repair
The Doosan Puma MX2600ST is a high performance CNC turning center capable of multi-axis milling/turning. It can come equipped with this 12,000 rpm spindle and capto tooling taper.
This Doosan Puma MX2600ST spindle was sent in to us due to a hard crash. We completed a full breakdown and evaluation once it arrive at Northland Tool and Electronics. It was determined that the shaft nose was bent 60+ microns due to the crash and the bearings were severely damaged. No dimensional deviations were noted for the repair.
The following actions were performed on this Doosan Puma MX2600ST spindle:
- Clean, inspect overall dimensions
- Replace bearings, o-rings, and assembly screws
- Replace shaft with customer supplied shaft
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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Doosan Mynex 540
50 Taper The bearings of this spindle were loud during operation. They had reached the end of their life. The taper had 12 microns of run out. We were able to kiss grind the taper to eliminate [...]
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