The Model RS drive nut provides smooth, backlash-free linear motion in machine design. Unlike a screw, the RS drive nut runs on a smooth shaft without threads. This eliminates the potential for clogged threads and jamming. If debris does become lodged in the drive nut's travel path, the drive slips until the operator can remove the obstruction. The nut is available in 10 sizes to meet varying payload and linear speed requirements, and each size is available in five linear pitch settings. It is suitable for vertical or horizontal travel.