Cylindrical roller electrically insulated bearings retainer type: iron retainer, copper retainer EM.
Deep groove ball electric insulated bearing type: iron guarantee, copper guarantee M & rubber wood (open, rubber cover 2RS, iron cover ZZ) electric insulated bearings model representation and the same as the ordinary type bearings, only a few more suffixes, refer to the international bearing code.SKF: VL0241, VL2071, VA3091 & FAG: J20A, J20AA, J20B, J20C
