The BJ worm gear screw jack is designed in a number of different versions and happens to be found 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 chromated surfaces with stainless steel spindles and food approved lubricants.
If there are unique requirements for the look, we are very happy to offer adaptations also in smaller quantities.
The spindles can be protected from dirt and water through the use of protecting tubes.
Ball-screw jacks feature a high-effectiveness ball screw and nut that reduces the mandatory input torque to about one-third the torque necessary for machine-screw jacks. 300 Series Stainless-metal screw jack are for environments where corrosion resistance is essential. Stainless-steel lifting threads are precision shaped to Class 2-C (centralizing) thread profiles.
The design is compact, simple and its own modular construction allows great versatility in the choice of gear, mounting options, flanges, oil types and surface area treatments. The modular design is also ideal if there is a need for customisations where in fact the gearbox must be optimized for particular needs. That’s the reason why we are able to produce worm gear screw jacks adapted to your wants at an attractive cost.
The worm gear screw jack permits axial positioning and as well as our other items within the field of encoders, couplings and connecting shafts, it permits running more axial movements synchronously.
By connecting person screw jacks with drive shafts lifting systems can be realized in a straightforward way. With the wealthy 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 kinds of screw jacks make use of a lift shaft or screw that travels into or out from the worm gear package. The lift shaft 
can either protrude from the mounting flange part of the gearbox or from the top part of the worm equipment box. Secondly, are rotating type screw jacks. In this design, the lift shaft continues to be stationary and a lifting nut movements along the lift shaft. Much like the translating screw jacks the screw can also protrude down from the mounting flange or up from the top of the jack. To produce 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-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 loss of lubrication. Machine-screw jacks include a lifting shaft made of alloy steel with the very least tensile strength of 95,000 psi. Lead accuracy is approximately 0.004 in./ft.