[EricH]

Originally Posted by Cory

That's actually backwards-if you're pressing a bearing into a hole, the hole needs to be smaller than the bearing.

a good press fit for a 0.750" bearing in aluminum would probably be about 0.7495, off the top of my head. There's all kinds of charts available if you google "interference fit chart" or something similar.

Oops... I forgot about the real version of "press fit". You can press a bearing into the hole size I suggested, but gravity will press it out pretty easily.