There are a few screw jack design available including Translating, Keyed and Traveling Nut. All of them can be achieved with either a machine screw jack or ball screw jack. Want to know which jack design is best for your application? Below details may help you.
Translating screw Jacks are most often selected. The main components of screw jacks are gear housing, trapezoidal lifting screw, worm screw and worm gear. Worm screw is rotated manually or by motor, then the worm gear will be rotated by the worm screw and the lifting screw moves through the rotating worm gear. The linear motion speed of lifting screw depends on thread size and rotation ratio of worm gears.
This translating screw jack is the standard version. For the installation, you will need the same amount of space below the screw jack gearbox as you need above.