... 5kg.cm 4.Low Noise,Reliable performance 20mm dc motor with gearbox,with planetary gearbox,Can be equipped with ... : 20kg.cm5.Low noise,low current no spark6.electric motor with encoder,3-16 pulse signal7.Reduction Ratio:3 ... , Ad equipment, Audio equipment, Electronic game machine.Gear motor reduction ratio: 25/31/62/78/125/250MODELVOLTAGENO LOADAT ... .870.343.500.13 GM20-180SH,gear motor,electric motor