... :General,flanged,extended inner ring2.Shield / closure: Open,Teflon Sealed,Rubber Seals,2 Metal Shield3.Tolerance codes: ABEC-1, ABEC-3, ABEC ... : ABEC-1,3,5,7,9Seals Type: Open,Teflon Sealed,Rubber Seals,2 M...Number of Row: Single RowPlace of Origin: Shanghai ...