A servo motor is a type of electric motor that can rotate an output shaft at precise angular speeds in response to pulses of input signal. It consists of an electric motor, a feedback device, and a controller. They are able to accommodate complex motion patterns and profiles better than any other type of motor. Although they are small in size they can pack a lot of power, and are quite energy efficient. Servo motors for sale online have many benefits that make them an attractive choice for a lot of different industries.