High torque DC Motor with gearbox, Gear Motor 1.Gear box Dia:50. ... reductionReduction ratio7.2,7.5,13.3,13.829,30,53,55116,120,213,220 464,480,853,8831856,1920,3415 ... breaking torque30Kgf · cm90Kgf · cm90Kgf · cmMax. Gearing efficiency81% , 73%65% ,59%53% Other reduction ratio please telephont or e-mail to out ...