Thrust bearing.

Yeah, I have a crank that needs the thrust welded, but, can't find a machine shop here in San Diego that will do it. Do you have one there in Vegas that will do that? About what do they charge?
Howard who owns Vegas Machine/Nevada Crankshafts does
mine. I am not allowed to give you the phone number on this
site and not even sure I am supposed to tell you the name.

It seems machine work goes up every week, so you would have
to talk to him for a price quote.