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 this ... steel)--China,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration and Noisy ... Certificates: ISO 9001,200011)Producing range : Standard and non-standard bearings .