Dual-Lead & Low-Backlash Worm Shafts

Dual-lead worm shafts are used in drive arrangements where axial worm position is part of the backlash-adjustment method. The JDLB 45–90 family on this site provides series context, while the exact shaft interfaces and replacement geometry still require the ordered drawing, current component or complete drive reference.Backlash is an assembled-drive result. A shaft-only quote should therefore include the mating wheel, center distance, bearing arrangement and the adjustment condition that the machine is expected to maintain.