1)Miniature bearing. Chrome steel 2)605-6012,625-6215,6300-6315 ... ABEC3,ABEC5 Cixi Ouji Bearing CO.,LTD is a deep groove ball bearing & Fan bearing & water pump bearing & Miniature bearing OEM manufacturer .As a ... China,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration and Noisy ... )Producing range : Standard and non-standard bearings . Miniature bearing