Bevel Gear Acme Screwjack is available in 400kg to 3500kg static capacities, offer higher efficiency and greater speed than other mechanical worm gear screw jacks. As an added benefit, bevel gear jacks also act as miter boxes, making them an ideal choice for multi-jack systems. As many as three output shafts may be specified for mounting motors, limit switches, readout devices and other accessories. Bevel gear jacks with single lead screws provide the benefits of a self-locking screw, and bevel gear jacks with double lead screws offer even greater travel speed.