... ,ABEC-3,ABEC-5 P0/ P6 /P5/P43.Fields Used in : Motorcycle , Motor , Pump ,Fan,Air conditioner ,Microwave Oven,Rangehood,Sewing machine ... Cylindrical Roller BearingSingle row cylindraical Roller Bearing can be classified in NU,NJ,NUP,N,NF and so on .Inner ring ...