Servo motor and stepper motor are almost used in all automated industries where high precision is to be achieved. Though servo and stepper motor can provide adequate torque with high accuracy, it is prominently important to choose the best one based on the performance ratio of these two motors. The decision for picking out the most appropriate of the two alternatives has many criteria. Hence the technical parameters such as speed, Torque, acceleration and competitive price are focused in this paper.

Keywords : Servo Motor, Stepper Motor, Error Detector, Error Amplifier,Gear Box, Controller, Positional Feed Back Sensor.