Eurotech Lathe Head Spindle Repair
A specialty manufacturer sent us a Eurotech spindle for repair. The spindle was seized when it arrived at our facility. Incoming inspection showed that the rear bearing failed due to contamination. The rear housing was +17 microns out of tolerance. The shaft journals were –6 and –10 microns out of tolerance. It was determined that the housing and shaft would need grind, chrome plated and finish ground to OEM specifications.
After completion of the dimensional work in our grinding department the spindle was put into assembly. The spindle was then run on our custom test stand at top speed and balanced. Vibration readings were taken and a comprehensive quality control inspection was completed. The spindle was delivered to the customer and our sales engineer reviewed the customer’s process and we recommended using the air purge option on the machine to prevent contamination from entering the spindle.
This customer was sending his spindles back to the OEM. His spindles were not lasting and the costs were high so he tried an independent spindle repair house. Unfortunately the company he tried did not work with him on the failure causes, which led to further frustration and costly spindle rebuilds.
He then met us at our booth at the Eastec show and we started working to solve his spindle problems. To date he has not had a single failure on a Northland Tool spindle repair.
Normac MGS952AM Dresser Spindle Repair
This Normac spindle is commonly used as a dressing spindle in the cutting tool manufacturing industry. We repair this type and many similar types for a variety of customers. The key components we look to improve during the rebuild is run out, contamination prevention, electrical stability and keeping the repairs affordable. We stock many of the parts needed for these repairs to reduce the repair turnaround and cost.
Studer Oil bearing
Mori Seiki MH50