Worm Gear electrical ball screw jack, anti-Rotation and higher pitches available
Translating(traveling screw) and rotating (traveling nut) configurations
Move loads and apply force more efficiently than other machine screw actuators
No self-locking! Because of having less friction, a holding brake is necessary: a motor brake or a springtime pressure brake is necessary.
These worm equipment screw jacks are very precision and reliability, it could meet all of the necessary protection, cost-efficiency, and strength mandates of your application. High strength bronze worm gear can be used, the payloads from 0.5T to 100T . A complete of 11 sizes can be found, each in a touring nut version and a basic version.
The screw jacks can be used separately or in groupings linked with drive shafts, joints, couplings, bevel gearboxes and other mechanical components. In addition they can be powered by different motors: electric, with either AC electric motor or DC motor and also hydraulic or pneumatic motors. Each one of these motion control items could be built-in many type jacking system arrangements or configurations.
Ball screw jacks are normal where higher speeds and duty cycles are needed. Most screw jacks use trapezoidal screws Tr, because they’re basic, robust and inexpensive. The proportion of screw jacks that use ball screws is nevertheless constantly increasing. The reason why for this are primarily their pitch precision, their high efficiency (much less power consumption and less heat generation) and the bigger pitches available, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. Because of this model screw jack, only the bronze nut move combined with the screw shaft. The lifting screw will not slide. It is Worm Gear Jack definitely like the linear actuator working principle which converts rotational motion into linear motion. From this stage to understand, an electric linear actuator is a motorized screw jack.
The screw thread of screw jack can be acme screw and ball screw. So are there few variants of the screw jack. Commonly, machine screw jack and ball screw jack can be found in your engineer project. Weighed against acme screw, the ball screw is usually better as there are ball bearings between the nut and screw. The anti-friction ball 
bearing can raise the ball screw efficiency.
