full ceramic bearing have excellence performance as special electrical and magnetism resistance,wear and corrosion resistance,lubrication and maintenance free when working,especially high and low-temperature application.etc.could be used in awful environment and specially conditionl.the rings and balls made by full ceramic material:zro2,as a standard constructure,the cage mand by ptfe,generally we also could make the cage with grpa66-25,peek,pi,aisisus304,sus316,cu,etc. welcome to visit our website: http://www.inrbearing.com http://www.linna-cn.com tel:86-21-58855656 fax:86-21-58851582 mail:apex@linna-cn.com msn:xlf0419@hotmail.com add:rm101,bldg no.20,308 yushan road,pudong,shanghai,p.r.china