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
Fryer VMC Spindle Repair
This Fryer VMC spindle is grease lubricated, belt driven, and capable of running up to 8,500 rpm.
This Fryer spindle was very noisy and bearings felt scratchy when spun by hand incoming. The tail end had a few high spots of run out and the spindle arrived missing the drive dogs and draw bar. After completing a full breakdown and evaluation, we noted that the pulley keys were worn out and the front and rear housings were worn out of ISO. Lastly, all the bearings were heavily contaminated with a brown particulate. No other dimensional deviations were noted for this repair.
The following actions were performed on this Fryer VMC spindle:
- Clean, inspect overall dimensions
- Replace bearings, bolts, and o-rings
- Grind, Chrome Plate, and Finish Grind the 115mm Front and Rear Housings
- Manufacture new pulley keys
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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In this helpful guide to spindle bearing preload, Northland Tool & Electronics will answer all the basic questions about your spindle bearing preload calculations.Read More