Foo - How undersized should this bore be for a press fit?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.

PDA

View Full Version : How undersized should this bore be for a press fit?

phantomcow2

08-06-06, 09:59 AM

I am boring a block of cast iron out to press fit two 32mmOD radial bearings. The problem is, I don't really know what to bore this out to. This needs to be a permanent fit.
Right now, It is bored to 31.95mm exactly, still on my lathe. Does anybody know roughly what I should bore it out to to achieve the proper fit?

iamlucky13

08-06-06, 12:39 PM

I'm afraid my copy of Machinery's Handbook is at work. If you can find a copy to borrow, I think that might have some information on press fits.

phantomcow2

08-06-06, 04:25 PM

oh yea, I can just peak at work tomorrow.
I was going to ditch the radial bearings anyways, and go angular contact. Then get a very light press fit, but use permanent loctite to really keep it in place.