... Bearing 2.Best sale service 3.LV,V,WV type 4.Support sample 3/8'' V groove guide wheel ... Full SS440Precision standard: ABEC-1, ABEC-3, ABEC-5Noise standard: Z1, Z2, Z3Vibration standard: V1, V2, V3Shield type: Z, ZZ, ... V groove guide wheel bearing W2,RM2ZZ type drawing: 3.V groove bearing W2,RM2ZZ pictures: 4.V groove ... ,RM2ZZ package:5.V groove bearing useful: 3/8'' V groove guide wheel bearing RM2ZZ