General This series direct current motors absorb new technique and craft both at home and abroad, collect excellent technical power, utilize advanced computer design software for improving and specially used for oil electric driving drillers. This series motors can be used for D.C. driving drillers, turntable rumble and winch. The motors can be classified for YZ08 (right side) and YZ08A (left side) according to different positions of terminal box (viewing from shaft end). The blower fixed on the left side viewing from shaft end is YZ08B, the type of blower is YF06, the others are all the same as YZ08. Briefing of construction This series direct current motors adopt forcing ventilation and four-pole series excitation structure. It is horizontal, single shaft and double bearing brace. It is made of stator, rotor, front and back cap, terminal box and blower etc..