[sanddrag]

Originally Posted by squirrel

You should be able to press fit a bearing into a sheet that thin. To make a hole the correct size, get the exact size of the bearing, then subtract a few thousandths for the press fit, and make a hole exactly that size. Usually this requires using a reamer, or CNC machining.

"A few thousandths" is FAR too much interference unless you have a really big bearing. Ideally, you're looking for something in the neighborhood of 4 ten-thousandths undersize for that size of bearing. You can get special undersize reamers to do press fit bores.

Let me ask, why do you need a press fit anyhow? In FRC, they're often more trouble than they're worth. Just make a good close slip fit and use part geometry to keep everything in place (flanges, shoulders, counterbores, snap rings, etc).