My bearing company is just starting to get into the electric side of bearings but I have done a lot of testing on the 3/16 x 3/8's bearings that most of the electrics use in their hubs, wheels, and trannies. My goal is to sell the highest quality of bearing needed for RC but have a price that isn't RC specific. Since bearings are not made just for RC, the price of bearings is much cheaper outside of this industry (RC manufacturers mark up prices a lot on non-rc specific items). I give a 30 day money back guarentee as long as you return all of the product so there is no need to worry. They are black rubber shielded, 20 bearings for $24.99. We also carry 1/8th scale bearings and those are 20 bearings for $19.99. So come check us out at http://www.avidrc.com
,and yes I am a paid advertiser on this site.
Please remember though, I am a small company just starting out so I only carry the most popular bearing sizes. If there is something you ever want to see me carry, than feel free to drop a note in the suggestion submission section on the front page of the website.