1)6204 Ball bearings, Chrome steel 2)605-6015,625-6215,6300-6315. ... -3,ABEC-5 Cixi Ouji Bearing CO.,LTD is a Ball bearings OEM manufacturer .As a specialized manufacturer and exporter for ... ---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration and Noisy level: Z1,Z2,Z3 ...