bearing help

[jimfortytwo]

http://www.sdp-si.com/eStore/CoverPg/Bearings.htm

I'd thought a bearing was a bearing, but it looks like i'm sorely mistaken, and I hate to think i'm missing out.

Ball bearings, linear ball bearings, needle roller bearings, thrust bearings, pressure bearings, press bearings, sleave bearings. I think I grasp most of the distinctions, but in terms of FIRST what are the part/application relationships? Specifically, which of these are useful for a press-fit in a gearbox? Which of these make sense to use inside the free-gears of a dog-shifting system? Are some of these not viable with a keyed shaft (needle rollers?). Which can handle our driving loads? Which can handle side loads as per swerve module needs?

Thanks all.