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 effectively than additional machine screw actuators
No self-locking! Because of the lack of friction, a holding brake is necessary: a engine brake or a springtime pressure brake is required.
These worm equipment screw jacks are extremely precision and reliability, it could meet all of the necessary safety, cost-efficiency, and sturdiness mandates of 
the application. High power bronze worm gear can be used, the payloads from 0.5T to 100T . A total of 11 sizes are available, each in a journeying 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 can be driven by different motors: electric, with either AC motor or DC motor as well as hydraulic or pneumatic motors. All 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 simple, robust and inexpensive. The Worm Gear Jack proportion of screw jacks that use ball screws is nevertheless constantly increasing. The reasons for this are primarily their pitch precision, their high efficiency (much less power consumption and less heat era) and the higher pitches available, which permit higher stroke speeds.
A screw jack can truly add a machine cut lifting nut. For this model screw jack, only the bronze nut move along with the screw shaft. The lifting screw does not slide. It can be similar to the linear actuator operating principle which converts rotational motion into linear motion. Out of this stage to understand, an electric linear actuator is usually 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 is usually better as there are ball bearings between the nut and screw. The anti-friction ball bearing can boost the ball screw efficiency.