Colin, Looks like you got a little ahead of yourself. lol Seriously, you might want to stop and plan/design ahead. I have no idea of where you are in preparing your next move or what is already completed. Your bearing must be mounted in some sort of support; the nut also; are you going to support the opposite end? if so, with a "floating" bearing?
ref. metal shop to do it? probably, choose a good one. Assumptions are a bad idea but here we go. If your shaft end is case hardened (assumption 1) it may be a simple grind thru the case hardening, turn and thread for a bearing locknut. May require a spacer/adapter to clamp the bearing against a shoulder. or?
There's a lot of good info here. Peruse the project logs and other forums, most of youre future questions have already been answered. If you don't find it, ask specific questions and you'll get more answers than you need (or even want).
Another load of info is at the websites of the bearing, ballscrew and linear way systems companies, especially the engineering and technical support areas. They'll give you all the shaft shoulder and housing shoulder dimensions etc. Read them, good stuff.
Hope that helps for now, adios
Dick Z
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