51mm dc gear motor with 775 1.Voltage:3V, 6V,9V, 12V, 24V,36VDC; 2.Torque Range:10kgf.cm ~ 30kgf.cm 3. ... Gearbox Dia: 50mm 51mm dc gear motor,Can be ... 15-20 days.10. 6v dc gear motor,12v dc gear motor,24v dc gear motor,37mm gear motorGearbox Data:Number of stages2,3stages ... .Gearing efficiency81%;73%65%;59%53% 51mm dc gear motor with dc 24v