Model NO. :608 (it can option) 1.Bearing material:carbon,chrome,iron,ect 2.Type: 2RS ZZ ,Z ,RS,OPEN 3.Size: 8 ... ,2RS1,N,RN,ZN,RZN6300200~1200Z,2Z,RZ,2RZ,RS,2RS,N,RN,ZN,RZN640010~100N,NR6400110~1200N,NR1600010~26016000280~1000Z ... ,NR,ZN,61900300~1000Z,2Z,RZMini bearings1~10Z,2Z,RS,2RS,F60000 ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg.com/photo ...