... .Stall Torque: 20kg.cm5.Low noise,low current no spark6.electric motor with encoder,3-16 pulse signal7.Reduction Ratio:3 ... pieces ,the delivery time is 15-30 days Typical ApplicationsDescriptionAutomatic window curtain, Financial apparatus, Electronic game machine.Storage box, Ad equipment ... .101.000.870.343.500.13 GM20-180SH,gear motor,electric motor