I am trying to desing a breadmaker, all parameters are known. To determine and define the sizes of shafts, belts, screws, electric motor and so on, I have to choose an electric motor. So, on choosing electric motor, it is well known two requirements are needed;torque and rpm. I dont have any problem on rpm, but I dont know how to determine required torque. All parameters such as size of kneading appliance and pan, density of dough, temperature are known, but I couldnt make them together to determine required torque. Is there anybody to show the path I have to follow?