Comments on: What Is An Alternative To Ball Bearings?

By: neinth

neinth — Sun, 07 Mar 2010 04:57:20 +0000

sling shot ammo and some packing greese would work,should be under 10 US dollars for a large ammount of them

By: MechEGee

MechEGee — Sun, 07 Mar 2010 02:40:58 +0000

sleeve bearings

By: Irv S

Irv S — Sat, 06 Mar 2010 22:58:20 +0000

Nylon bearings are cheap and will serve for
low stress applications.

By: Rorschac

Rorschac — Sat, 06 Mar 2010 17:51:14 +0000

there are lots of different kinds of bearings:
sleeve bearings, roller bearings, needle bearings, hydrodynamic bearings, hydrostatic bearings, magnetic bearings, air bearings.

By: Gary H

Gary H — Sat, 06 Mar 2010 16:56:53 +0000

Depends on the details: forces involved, how much friction you can tolerate, what is the surface speed of contact, vibration, how much heating will be acceptable, etc.
There are certainly other bearings available. One potential option, graphite impregnated copper. good luck