Technical data: a、norm: 25-185 nine norm(25-90norm are aluminum alloy box,the others are cast iron box); b、ratio: 7.5-100(norm 25 has no 80 and 100 ratio, norm 30 has no 100 ratio) eleven norm; c、Input power: 0.09-7.5KW(4 poles electric motor); d、Output torque: 10-1050N.m; e、The versions are: input flange、input shaft、output shaft、output hollow shaft、shaft mounting and flange mounting.