The BJ worm gear screw jack is designed in several different versions and is currently used in countless solutions within Healthcare, the meals Industry and other industries.
All worm gear screw jacks may as standard be given easy-to-clean and yellow-colored chromated areas with stainless steel spindles and food approved lubricants.
If there are particular requirements for the design, we are very happy to offer adaptations actually in smaller quantities.
The spindles can be protected from dirt and water by using protecting tubes.
Ball-screw jacks include a high-efficiency ball screw and nut that reduces the required input torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-steel screw jack are for conditions where corrosion level of resistance is essential. Stainless-steel lifting threads are precision created to Course 2-C (centralizing) thread profiles.
The look is compact, simple and its modular construction allows great flexibility in the choice of gear, installation options, flanges, oil types and surface treatments. The modular style is also ideal when there is a dependence on customisations where the gearbox should be optimized for specific needs. That is the reason why we are able to produce worm gear screw jacks adapted to your desires at an attractive price.
The worm gear screw jack permits axial positioning and as well as our other products within the field of encoders, couplings and connecting shafts, it permits running more axial actions synchronously.
By connecting person screw jacks with drive shafts lifting systems could be realized in a simple way. With the rich accessories many problems can be solved with the standard program.
There are two basic types of screw jacks which a few additional styles originate. Initial, there are translating screw jacks. These types of screw jacks make use of a lift shaft or screw that travels into 
or right out of the worm gear box. The lift shaft can either protrude from the installation flange aspect of the gearbox or from the very best part of the worm gear container. Secondly, are rotating type screw jacks. In this design, the lift shaft remains stationary and a lifting nut movements along the lift shaft. Similar to the translating screw jacks the screw can also protrude down from the mounting flange or up from the top of the jack. To create translation of the lift shaft or nut, both configurations should be secured to avoid rotation. Where this is unfeasible, keyed screw jacks are an option.
Each model’s worm-gear-set arrangement uses an alloy-metal worm, which drives a high-strength bronze worm gear (drive sleeve). The worm shaft is backed on antifriction tapered roller bearings with external seals to prevent lack of lubrication. Machine-screw jacks include a lifting shaft made of alloy steel with a minimum tensile strength of 95,000 psi. Lead accuracy is around 0.004 in./ft.