Making a steady rest

[PixMan]

My, amazing what happens when you are working on 4 hours of sleep in the last two days.

I meant bearings, and got something else in my head.

The pins for the bearings might need to get changed now & then, and to get a true press fit you'd be disassembling the carriers to get the pins in & out. Or, you'd be pounding on the pins from the side and I don't know how successful that would be. Ideally you want a snug sliding fit in the bearing inner race so that it doesn't spin on the pin, and loose sliding fit in the carrier.