The BJ worm gear screw jack is designed in a number of different versions and is currently used in countless solutions within Healthcare, the Food Industry and other industries.
All worm equipment screw jacks may because standard be given easy-to-clean and yellowish chromated surfaces with stainless steel spindles and food approved lubricants.
If there are special requirements for the design, we are very happy to offer adaptations even in smaller quantities.
The spindles could be protected from dirt and water by using protecting tubes.
Ball-screw jacks include a high-performance ball screw and nut that reduces the mandatory input torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-steel screw jack are for environments where corrosion resistance is essential. Stainless-metal lifting threads are precision formed to Class 2-C (centralizing) thread profiles.
The look is compact, simple and its modular construction allows great flexibility in the choice of gear, mounting options, flanges, oil types and surface treatments. The modular design is also ideal when there is a need for customisations where in fact the gearbox should be optimized for specific needs. That is the reason why we can produce worm gear screw jacks adapted to your wishes at an attractive price.
The worm equipment screw jack allows for axial positioning and together with our other products within the field of encoders, couplings and connecting shafts, it allows for running more axial motions synchronously.
By connecting individual screw jacks with drive shafts lifting systems can be realized in a simple way. With the wealthy accessories many problems can be solved with the standard program.
There are two basic types of screw jacks of which a few additional styles originate. First, there are translating screw jacks. These kinds of screw jacks make use of a good start shaft or screw that travels into or out from the worm gear container. The lift shaft can either protrude from the mounting flange aspect of the gearbox or from the top part of the worm gear box. Secondly, are rotating type screw jacks. In this style, the lift shaft remains stationary and a lifting nut techniques along the lift shaft. Similar to the translating screw jacks the screw may also protrude 
down from the installation flange or up from the very best of the jack. To create translation of the lift shaft or nut, both configurations should be secured to prevent rotation. Where this is unfeasible, keyed screw jacks are a choice.
Each model’s worm-gear-set arrangement uses an alloy-metal worm, which drives a high-strength bronze worm equipment (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with external seals to prevent lack 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 approximately 0.004 in./ft.