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 ... range:605-6015,625-6215,6300-6315.3)Material:Gcr15(Chrome steel)--China,(AISI)52100---American ,(Din) 100Cr6---Germany4)Shield ... :ABEC-1,ABEC-3,ABEC-5.7)Fields Used in : Motorcycle , Motor , Pump ,Fan,Air conditioner ,Microwave Oven,Rangehood, ...