is what is more than likely in them wheels, and most lawn-mower carts, etc. :http://www.vxb.com/Merchant2/merchan...edBallBearings
What your describing is valid, no doubt, but more for spindles, and some high end s.p. mower drives, etc.
" But let me tell you something ,folks: You can't fix stupid! There's not a pill you can take, there's not a class you can go to. Stupid is forever!"