Full Ceramic 608 Bearing size 8mm inner x 22mm outer x 7mm thickness (8x22x7mm bearing). Features pure Silicon Nitride outer and inner races as well as full silicon nitride diamond polished balls. ABEC 7.
Doesn't get any better than these: plus they are superlightweight. Also the fastest fidget spinner bearing. Try yours today. Price is per one ball bearing. Sealed on both sides.
8x22mm ball bearing