High-speed gearboxes supplement the range of screw jacks for extended applications with greater dynamics. High-speed gearboxes have hardened and ground, spiral-toothed bevel gear ratios. You achieve high lifting speeds while improving efficiency. Note: all bevel gear ball screw jacks are without self-locking function, required a brake motor or external locking device to hold the position. JSL25 Bevel Gear Ball Screw Jacks Dimensional Drawing About 2D Autocad dwg, dxf assembly drawings, and 3D stp, step, model, igs, prt or catpart assembly drawings, please contact Jacton Industry directly. Dimensions are subject to change without notice.