Quote:
Originally Posted by George C
Failing that, find a shop that will EDM round ones for you.
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I was thinking about that, and wondering whether you'll get arc discharge erosion between the balls and the races, or corrosion from the dielectric medium (distilled water in a traditional wire EDM).
The solution is probably to temporarily protect them with extra antioxidant grease all over the external surfaces, and covering the seals, and to make sure both races are at the same electrical potential.