... price 3,Quick delivery,good service 4,speed skate bearing As a professional skateboard bearings manufacturer, we have two major advantages ... learn more about us through the following content.1,Skateboard Bearings SizeGenerally in the skateboard industry, 608zz (8x22x7mm) is ... well,include 6900zz(10x22x6mm),688zz(8x16x5mm).2,ToleranceLevels of our skate bearings include ABEC-1, ABEC-3, ABEC-5, ABEC- ...