... price 3,Quick delivery,good service 4,skate bearing As a professional skateboard bearings manufacturer, we have two major advantages compared ... 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-7 ...