... 3,High efficiency, low noise, 4,Dia:350mm axial fan motor1)High efficiency, low noise, small vibration, compact ... Widely used: can replace the conventional axial flow fan or be used in the occasion where the Oil ... 2 3 4 1,YWF: Exterior rotor axial fan motor 2,Motor poles:2—2 poles,4—4 ... Single-phase motor,D--three-phase motor4,Fan diameter:400—fan diameter is 400mm 14in AC axial fan motor with grid