pre-loaded double nut ball screw

DFU Series Double Nut Zero-Backlash Ball Screw

DFU Series double-nut zero-backlash ball screw with precision spacer pre-load delivering <0.003 mm axial play and 1.5× the dynamic load of single-nut equivalents. Available in C7 rolled or C5 ground precision, shaft diameters 16–40 mm. Designed for bidirectional positioning axes in automation, semiconductor handling, and measurement equipment.

Grade

C7 (rolled) / C5 (ground)

Size

16 mm – 40 mm