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
Gamfior E13666M Spindle Repair
The design of this Gamfior E13666M spindle is very unique. The spindle incorporates a two-piece shaft design that must be carefully taken apart to remove the front bearings. Special tooling was manufactured in our machine shop in order for us to disassemble and reassemble the spindle. It is also equipped with an HSK taper and capable of running up to 18,000 rpm.
Our customer sent us this spindle from his Fidia machine because the spindle was not able to hold the tight tolerances needed for his operation. Upon inspection it was found that one of the shaft pieces was ground incorrectly from a previous rebuild. This caused the two shaft pieces to misalign and ultimately led to the failure of the spindle.
The following actions were performed on this Gamfior E13666M spindle:
- Clean all parts of the spindle
- Replace all bearings, o-rings, and assembly screws
- Grind, chrome plate, and finish grind the shaft piece and HSK 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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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