Worm Gear worm screw jack 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 holding brake is essential: a motor brake or a spring pressure brake is required.
These worm gear screw jacks are extremely precision and reliability, it can meet all of the necessary protection, cost-efficiency, and sturdiness mandates of your application. High power bronze worm gear is used, the payloads from 0.5T to 100T . A total of 11 sizes can be found, each in a vacationing nut version and a basic version.
The screw jacks can be used separately or in groups linked with drive shafts, joints, couplings, bevel gearboxes and various other mechanical components. They also could be powered by different motors: electrical, with either AC electric motor or DC motor as well as hydraulic or pneumatic motors. Each one of these motion control items can be built in many type jacking system 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 are basic, robust and inexpensive. The proportion of screw jacks that use ball screws is nevertheless constantly increasing. The reason why for this are mainly their pitch precision, their high efficiency (much less power consumption and less heat era) and the bigger pitches offered, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. Because of this model screw jack, just the bronze nut move together with the screw shaft. The lifting screw will not slide. It is like the linear actuator operating basic principle which converts rotational motion into linear motion. Out of this stage to understand, a power linear actuator is certainly a motorized screw jack.
The screw thread of screw jack could be acme screw and ball screw. So are there few variations 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 usually more efficient as there are ball bearings between the nut and screw. The anti-friction ball bearing can boost the ball screw efficiency.