The BJ worm gear screw jack is designed in a number of different versions and is currently found in countless solutions within Healthcare, the Food Industry and other industries.
All worm gear screw jacks may since standard be supplied with easy-to-clean and yellowish chromated surfaces with stainless steel spindles and meals approved lubricants.
If there are unique requirements for the look, we are very happy to offer adaptations also 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 required insight torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-steel screw jack are for conditions where corrosion resistance is essential. Stainless-steel lifting threads are precision shaped to Class 2-C (centralizing) thread profiles.
The look is compact, simple and its modular construction allows great flexibility in the decision of gear, mounting options, flanges, oil types and surface area treatments. The modular design is also ideal when there is a dependence on customisations where the gearbox should be optimized for specific needs. That’s the reason why we are able to produce worm gear screw jacks adapted to your desires at an attractive cost.
The worm gear screw jack permits axial positioning and together with our other items within the field of encoders, couplings and connecting shafts, it allows for running more axial movements synchronously.
By connecting individual screw jacks with drive shafts lifting systems can be realized in a straightforward way. With the rich accessories many problems could be solved with the standard program.
There are two basic types of screw jacks which a few additional styles originate. 1st, there are translating screw jacks. These types of screw jacks use a good start shaft or screw that travels into or out from the worm gear box. The lift shaft can either protrude from the mounting flange side of the gearbox or from the very best aspect of the worm equipment container. Secondly, are rotating type screw jacks. In this design, the lift shaft remains stationary and a lifting nut techniques 
along the lift shaft. Similar to the translating screw jacks the screw can 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 avoid rotation. Where that 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 supported on antifriction tapered roller bearings with exterior seals to prevent lack of lubrication. Machine-screw jacks feature 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.