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 necessary: a engine brake or a spring pressure brake is Worm Gear Jack required.
These worm gear screw jacks are extremely precision and reliability, it can meet all the necessary security, cost-efficiency, and durability mandates of the application. High power bronze worm gear can be used, the payloads from 0.5T to 100T . A complete of 11 sizes are available, each in a touring nut version and a simple version.
The screw jacks can be utilized separately or in organizations connected with drive shafts, joints, couplings, bevel gearboxes and additional mechanical components. They also could be powered by different motors: electric, with either AC motor or DC motor along with hydraulic or pneumatic motors. Each one of these motion control items could be built-in many type jacking program arrangements or configurations.
Ball screw jacks are common 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 reasons for this are mainly their pitch accuracy, their high efficiency (much less power consumption and less heat era) and the bigger pitches obtainable, which permit higher stroke speeds.
A screw jack can truly 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 certainly like the linear actuator operating principle which converts rotational motion into linear motion. From this point to understand, an electric linear actuator is a motorized screw jack.
The screw thread of screw jack could be acme 
screw and ball screw. So there are few variations of the screw jack. Commonly, machine screw jack and ball screw jack are available in your engineer project. Weighed against acme screw, the ball screw can be better as there are ball bearings between your nut and screw. The anti-friction ball bearing can increase the ball screw efficiency.