Leadscrews are much more than mere threaded rods. Specifically, leadscrews are mechanical linear actuators that convert rotational motion into linear motion. They consist of a threaded shaft (the screw) and a nut that travels along the thread. As the nut moves along the thread, it creates a controlled motion or force. Typical uses are in linear actuators, CNC machinery, 3D printers, medical devices, industrial automation equipment, and aerospace and defense systems.

Leadscrew assemblies from Igus are engineered for maintenance-free operation. They’re made from self-lubricating composite plastic materials. This removes the need for external lubricants and coatings. One example is the dryspin high-helix series. These high-helix leadscrews have multi-start options, are not self-locking (they may need an ancillary brake or clamp) and feature a proprietary asymmetrical thread profile tailored to the plastic leadscrew nuts. Their specialized geometry supports higher speeds and, according to Igus, delivers up to 30% longer service life compared to conventional thread profiles. Igus produces these in aluminum and stainless steel and offer six leadscrew nut material options.