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
Hitachi Seiki VS60 Spindle Repair
The Hitachi Seiki VS60 is a CNC vertical machining center. It comes equipped with an oil mist lubricated and stator driven spindle capable of running up to 10,000 rpm.
When this Hitachi Seiki VS60 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. Upon inspection, we found that the bearings had failed from contamination. The main drawbar tube was cracked in several places where the rotary union sits and the drawbar pull force measured at 1600lbs. Lastly, we noted that the taper needs a cosmetic kiss.
The following actions were performed on this Hitachi Seiki VS60 spindle:
- Clean, inspect overall dimensions.
- Replace bearings, gripper balls, OEM drawtube and drawbar springs, and o-rings
- Kiss grind the tooling taper
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.
Hitachi Seiki HS630 Spindle Repair
Our customer sent in this Hitachi Seiki HS630 spindle after it had suffered a catastrophic rear bearing failure. Upon disassembly, we noted that the rear… [...]
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When this Hitachi Seiki VS50 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. Upon inspection we found that there… [...]
Hitachi Seiki HT-250 Spindle Repair
Our customer stated that the rear bearing is bad and was vibrating at 1,500 rpm. When this Hitachi Seiki HT-250 spindle arrived at Northland Tool… [...]
Hitachi Seiki CH250 Spindle Repair
When this Hitachi Seiki CH250 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. We found a few different issues… [...]
Downtime is inevitable for any machine, but knowing how to reduce downtime or minimize its likelihood is critical.Read More