1,skateboard miniature ball bearing 2,low noise and low libration 3,High accuracy ,High speed 4,OEM Service Offered 608 skateboard ball bearing with P5 low noise Typical application :Electrical motors, general machinery, industrial gearboxes, pumps, agricultural machinery, etc.Part of the specs of skateboard line BEARINGBore(mm)Quter Diameter(mm)Width(mm)Basic Load Rating(KN)Steel Ball(pcs) ...