Detailed Product Description Gear Motor,spur gear motor, DC motor ,pmdc motor,micro motor,geared motor,reduce speed motor,reducing motor,gear head motor,reducing motor 12V DC geared motor,low speed motor,gear reducer motor Dimension: Gearhead Diameter:42mm ... to the reduction ratio: Gear box length(mm)Reduction Ratio921/37,1/189,1/244,1/554 Gear Motor Technical Data: Reduction RatioVoltageNo LoadOn ...