Linear movements are often realized with pneumatic systems. An electronic linear servo motor can be used for applications where the infrastructure is not suitable for pneumatic systems. A linear servo motor often has a threaded screw. In combination with an electric motor, this is flanged either directly or via a gearhead. The screw itself is either a lead or a ball screw, depending on the requirement. These linear actuators are available with different screw lengths and diameters.
Some linear servo motors also work without a lead screw. They are called linear DC servomotors. In this case, the linear movement takes place via a forcer rod. The excellent relationship between linear force and current and the absence of static cogging torques make the FAULHABER linear DC servomotors ideal for use in micro-positioning applications. The positioning control of the linear servo motor is realized through integrated Hall sensors. The service life is influenced predominantly by the service life of the sleeve bearings. The wear of these bearings is heavily dependent on the operating speed of the linear servo motor and the load of the forcer rod. With optimum integration into the application, wear can be reduced to zero.