Worm Gear electric 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 keeping brake is necessary: a motor brake or a spring pressure brake is necessary.
These worm equipment screw jacks are very precision and reliability, it can meet all of the necessary basic safety, cost-efficiency, and sturdiness mandates of the 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 vacationing nut version and a simple 
version.
The screw jacks can be utilized separately or in organizations linked with drive shafts, joints, couplings, bevel gearboxes and additional mechanical components. In addition they can be driven by different motors: electric, with either AC engine or DC motor and also hydraulic or pneumatic motors. Each one of 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 however 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 Worm Gear Jack obtainable, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. For this model screw jack, just the bronze nut move together with the screw shaft. The lifting screw will not slide. It can be similar to the linear actuator working principle which converts rotational movement into linear motion. Out of this stage to understand, a power linear actuator can be a motorized screw jack.
The screw thread of screw jack could be acme screw and ball screw. So are there few variants of the screw jack. Commonly, machine screw jack and ball screw jack are available in your engineer task. Compared with acme screw, the ball screw can be more efficient as there are ball bearings between the nut and screw. The anti-friction ball bearing can increase the ball screw efficiency.