November 13, 2019

The BJ worm gear screw jack is designed in a number of different versions and happens to be used in countless solutions within Healthcare, the meals Industry and other industries.

All worm gear screw jacks may since standard be given easy-to-clean and yellow-colored chromated areas with stainless spindles and food approved lubricants.
If there are particular requirements for the design, we are very happy to offer adaptations even in smaller quantities.

The spindles can be protected from dirt and water by using protecting tubes.

Ball-screw jacks feature a high-performance ball screw and nut that reduces the required input torque to about one-third the torque necessary for machine-screw jacks. 300 Series Stainless-metal screw jack are for conditions where corrosion level of resistance is essential. Stainless-metal lifting threads are precision produced to Course 2-C (centralizing) thread profiles.
The design is compact, simple and its own modular construction allows great flexibility in the choice of gear, mounting options, flanges, oil types and surface area treatments. The modular style is also ideal when there is a dependence on customisations where the gearbox must be optimized for specific needs. That’s the reason why we are able to produce worm equipment screw jacks adapted to your wishes at an attractive cost.
The worm equipment screw jack permits axial positioning and together with our other items within the field of encoders, couplings and connecting shafts, it permits running more axial motions synchronously.

By connecting individual screw jacks with drive shafts lifting systems can be realized in a straightforward way. With the rich accessories many problems can be solved with the typical program.
There are two basic types of screw jacks which a few additional styles originate. First, there are translating screw jacks. These kinds of screw jacks make use of a lift shaft or screw that travels into or right out of the worm gear package. The lift shaft can either protrude from the mounting flange aspect of the gearbox or from the top aspect of the worm equipment package. Secondly, are rotating type screw jacks. In this design, the lift shaft remains stationary and a lifting nut moves along the lift shaft. Much like the translating screw jacks the screw can also protrude down from the installation flange or up from the top of the jack. To create translation of the lift shaft or nut, both configurations must be secured to prevent rotation. Where that is unfeasible, keyed screw jacks are a choice.
Each model’s worm-gear-set arrangement uses an alloy-steel worm, which drives a high-strength bronze worm equipment (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with exterior seals to prevent loss of lubrication. Machine-screw jacks include a lifting shaft manufactured from alloy steel with the very least tensile strength of 95,000 psi. Lead accuracy is around 0.004 in./ft.