Custom lead screw M series

for the aerospace industrylead

A linear stepper motor, also referred to as a linear actuator with direct drive, offers a simple solution for highly precise applications with low load. It functions without a gearhead and without an encoder. This makes it extremely compact, as well as especially easy to integrate. FAULHABER offers linear stepper motors with numerous equipment options for a wide range of operating conditions. What is a linear stepper motor? A linear stepper motor or linear actuator with direct drive is a combination of a rotating motor and a lead screw. The rotation of the lead screw is transferred by the nut to the application as a linear movement. This task can also be performed by a component of the application whose threaded hole is seated on the lead screw. How are FAULHABER linear stepper motors designed? For linear actuators with direct drive, FAULHABER only uses stepper motors – hence the designation "linear stepper motor." The rotary movement of a stepper motor can be divided into small steps by the motor control. As a result, this drive can approach a predefined position very precisely without the use of an encoder. At the same time, stepper motors accelerate very rapidly, they deliver full power with nearly no delay, and hold their position even with the power switched off. Thanks to these properties, they are very well suited for demanding positioning tasks. Because neither a gearhead nor an encoder is interconnected, this type of drive has an especially short overall length. The lead screw of the linear actuator is directly connected to the output shaft of the motor.