A servomotor is a rotary actuator which allows for precise control of angular position, acceleration and velocity. It consists of a motor coupled to a sensor for positional feedback and a holding brake. Servomotors are used in a variety of applications including robotics, automated machines and packaging machines. Servo motors are normally fitted with holding brakes in order to secure a position while in operation or at standstill of the motor.
There has been a trend towards the use of spring-applied brakes in servo motors. Spring-applied brakes can be used for a static position and with suitably adapted friction linings can also be used as a working brake for highly dynamic emergency stops. The flexibility of the spring-applied brake means its perfect for many servo applications. Spring-applied brakes in servo motors are reliable with loads and give excellent wear characteristics; they can be adjusted to meet the specific application needs and can be supplied with hand-release option.