If the hole is just a little too loose sometimes you can make the hole smaller by whacking the edge of the hole with the ball end of a ball-peen hammer. That will result in a little bit of the edge sticking into the hole creating a slight interference.
ChrisH
Quote:
Originally Posted by sanddrag
"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).
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