Northland Tool & Electronics is proud to be able to provide spindle repair and spindle rebuilding services across the United States and beyond. Thanks to our blog, we are able to show you images and share stories about spindle repairs such as this Weiss Bridgeport Spindle Repair which came from Knoxville, TN. Or this Mori Seiki CL203B Spindle Repair that came from Chicago, IL.
Whitnon 442-1880-350 Spindle Repair
This grinding spindle came to us with the power leads cut off the stator. The incoming inspection showed contamination in both the front and rear bearings. When the customer cut the wires they were no longer able to connect the spindle as it is wound for high or low voltage. We were able to trace the leads and label them for easier installation. We assembled the spindle in our clean room with ABEC 7 bearings. After the completion of the assembly our technicians test ran the spindle at the top rated speed and trim balanced it. It was then put through our comprehensive final quality check and was approved for shipment.
Hertlein Spindle Repair
This spindles front taper had worn to the point of needing a grind plate grind to bring it back to OEM specifications. The rear taper had run out but we were able to kiss grind it true. After we completed the work in our grinding department we manufactured replacement drive pins and assembled the spindle in our clean room. It was then broken in fully and test run at its maximum running speed. Vibration readings were taken and compared to our final QC criteria. All run out were check and passed. The spindle was then shipped to our customer.
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.
Agathon Spindle Rebuild
The rear shaft threads on this spindle were worn and were cut into the pulley mounting surface. This caused irregular run out on the pulley resulting in vibration. We fixed the pulley mounting surface and cut new threads in our machining and grinding departments. We then assembled the spindle in our clean room, test ran and put it through our final quality check. The spindle is as good as new which is a good thing as no replacement spindles were available for the machine.
This spindle failed from contamination to the front set of bearings. The taper also had 5 microns of run out. To prevent future failures from contamination Northland Tool re-engineered the front of the spindle adding a seal. This inexpensive modification could potentially increase the spindles life by many years. We then kiss ground the spindles tooling taper in our grinding department. Our technicians rebuilt the spindle to exacting tolerances and it was shipped back to our customer for installation.
If you need solutions to problems like this please contact us at 800-774-6353 or CLICK HERE.