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
Haas HL-6 Spindle Repair
The Haas HL-6 is a high production CNC turning center. It can come fitted with this oil lubricated and belt driven spindle that is capable of running up to 1,800 rpm.
This Haas HL-6 spindle was received as only a shaft and bearings. After we completed a full breakdown and evaluation of the spindle, we found that there had been a catastrophic front bearing failure. The ball cage was destroyed and the bearing separated during breakdown. The rear bearing was contaminated with a brown particulate, but was still intact. Lastly, we found that the nose of the spindle showed signs that the front cover was rubbing. We will have the customer check the front cover during installation. No dimensional deviations were noted for this repair.
The following actions were performed on this Haas HL-6 spindle:
- Clean, inspect overall dimensions.
- Replace 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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More Case Studies
Repair History - Here are examples of similar spindle repairs that may contain additional information that will help you. If you have additional questions, please contact us.
Haas DT-1 Spindle Repair
This Haas DT-1 spindle arrived to NTE after around 1,000 hours of high speed cutting of aluminum. The customer stated there were no significant crashes… [...]
Haas TL-4 Spindle Repair
Our customer delivered this spindle to Northland Tool with complaints that it was very noisy during operation. Right away during our incoming inspection, we noted… [...]
Haas VF-2 Spindle Repair
Upon arrival to Northland Tool and Electronics, this Haas VF-2 spindle was very hard to turn by hand and drawbar force measured with low retention. … [...]
Downtime is inevitable for any machine, but knowing how to reduce downtime or minimize its likelihood is critical.Read More