... Features:1.Structure:General,flanged,extended inner ring2.Shield / closure: Open,Teflon Sealed,Rubber Seals,2 Metal Shield3.Tolerance codes: ABEC-1, ABEC ... RowPlace of Origin: Shanghai China (Mainland)Structure: General,flanged,extended inner ringApplication: Remote-controlled cars,bicycles,sk...Vibration level codes: V4 ...