1)motorcycle bearings 2)607-609,6000-6012,6200-6216,6300- ... Manufacturer 5)ABEC-1,ABEC-3,ABEC-5. 1)Motorcycle bearing.2)607-609,6000-6012,6200-6216,6300-63163 ... ,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield/Closure:Plain(Open),Z,ZZ,RS,2RS,UG.5)Vibration and Noisy level ... :ABEC-1,ABEC-3,ABEC-5.7)Fields Used in : Motorcycle , Motor , Pump ,Fan,Air conditioner ,Microwave Oven,Rangehood,Sewing ...