In the latest experiment in the igus® plain bearings laboratory drive nuts manufactured in 3D printing from the materials iglidur® I180 and iglidur® J260 were tested in realistic conditions. For further comparison, drive nuts made of iglidur® bar stock as well as an ABS printed drive nut were additionally tested.
In the experiment, a drylin® SHT lift table was installed vertically and the drive nut subjected to a load of 129 N (Fig.1). The stroke length was 370 mm and the lead screw speed 290 rev/min. A drylin® DST high helix lead screw specifically tailored to the lubricant-free iglidur® high-performance polymers was used, thus ensuring a longer service life.