... IMP.&EXP. CO.,LTD is a manufacturer of ball bearings, HUANAN CANNAR Bearing Co., LTD, the subsidiary company of NINGBO CANNAR ... Bearings,Tapered Roller Bearings, Automotive Bearings, Pillow blocks, Thrust Ball Bearings,and also dealing in household appliances ,auto parts, motor ... .(AISI)52100—American,(Din)100Cr6—Germany.4) Shield/closure: open bearing, Z, ZZ, RS, 2RS.5) Vibration and Noise level: ...