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 additional machine screw actuators
No self-locking! Due to the lack of friction, a keeping brake is essential: a electric motor brake or a springtime pressure brake is necessary.
These worm equipment screw jacks are very precision and reliability, it could meet all the necessary safety, cost-efficiency, and strength mandates of the application. High power bronze worm gear can be used, the payloads from 0.5T to 100T . A complete of 11 sizes can be found, each in a traveling nut version and a simple version.
The screw jacks can be used separately or in groupings connected with drive shafts, joints, couplings, bevel gearboxes and various other mechanical components. They also can be driven by different motors: electrical, with either AC electric motor or DC motor and also hydraulic or pneumatic motors. All these motion control items can be built-in 
many type jacking program arrangements or configurations.
Ball screw jacks are normal where higher speeds and duty cycles are needed. Most screw jacks make use of trapezoidal screws Tr, because they are simple, robust and inexpensive. The proportion of screw jacks that make use of ball screws is nevertheless constantly increasing. The reason why for this are primarily their pitch precision, their high efficiency (less power consumption and much less heat generation) and the higher pitches offered, which permit higher stroke speeds.
A screw jack can truly add a machine cut lifting nut. For this model screw jack, just the bronze nut move combined with the screw shaft. The lifting screw does not slide. It can be like the linear actuator operating basic principle which converts rotational movement into linear motion. From this stage to Worm Gear Jack understand, a power linear actuator is definitely a motorized screw jack.
The screw thread of screw jack can be acme screw and ball screw. So there are few variants of the screw jack. Commonly, machine screw jack and ball screw jack can be found in your engineer task. Weighed against acme screw, the ball screw is definitely better as there are ball bearings between the nut and screw. The anti-friction ball bearing can increase the ball screw efficiency.