The BJ worm gear screw jack was created in several different versions and is currently used 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 yellow chromated areas with stainless spindles and meals approved lubricants.
If there are special requirements for the design, we are pleased to offer adaptations even in smaller quantities.
The spindles can 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 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 formed to Class 2-C (centralizing) thread profiles.
The design is compact, simple and its modular construction allows great versatility in the decision of gear, installation 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 must be optimized for particular needs. That is the reason why we can produce worm equipment screw jacks adapted to your wants at an attractive cost.
The worm gear 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 actions synchronously.
By connecting person screw jacks with drive shafts lifting systems could be realized in a straightforward way. With the rich 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 box. The lift shaft can either protrude from the installation flange side of the gearbox or from the top side of the worm equipment package. Secondly, are rotating type screw jacks. In this style, the lift shaft continues to be stationary and a lifting nut moves 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 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 equipment (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 a minimum tensile strength of 95,000 psi. Lead precision is around 0.004 in./ft.