Reply To: Work Holding: drilling and taping a ball bearing

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Muzzer on 11/04/2017 14:24:45:

[…]

So the only option is surface hardening which is a diffusion process.

Examples are Bodycote "Kolsterising", Arcor and Sulzer Oerlikon "Balitherm IONIT OX". There are others…

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For the proposed application, that sounds very encouraging …

First grind a flat spot on the ball, which will locally remove the surface hardening; then drill as Andrew suggests.

MichaelG.