SKF 4203 atn9 bearing ntn is a type of double deep groove ball bearings,it is made in Italy/Germany. Sizes of SKF 4203 atn9 bearing ntn: inner diameter--17 mm,outer diameter--40 mm,thickness--16 mm.There are two rubber seals on both sides of SKF 4203 atn9 bearing ntn. Large ready stock and fastest delivery in 1 day,best service for you.