The BJ worm gear screw jack is designed in a number of different versions and is currently found in countless solutions within Healthcare, the meals Industry and other industries.
All worm gear screw jacks may as standard be supplied with easy-to-clean and yellowish chromated surfaces with stainless steel spindles and meals approved lubricants.
If there are special requirements for the look, we are very happy to offer adaptations actually in smaller quantities.
The spindles could be protected from dirt and water by using protecting tubes.
Ball-screw jacks feature a high-effectiveness ball screw and nut that reduces the required input torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-metal screw jack are for conditions where corrosion level of resistance is essential. Stainless-metal lifting threads are precision formed to Class 2-C (centralizing) thread profiles.
The design is compact, simple and its own modular construction allows great versatility in the decision of gear, mounting options, flanges, oil types and surface area treatments. The modular style is also ideal when there is a dependence on customisations where in fact the gearbox should be optimized for specific needs. That is the reason why we are able to produce worm equipment screw jacks adapted to your wishes 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 motions synchronously.
By connecting individual screw jacks with drive shafts lifting systems could be realized in a simple way. With the wealthy accessories many problems can be solved with the typical program.
There are two basic types of screw jacks which a few additional styles originate. 1st, there are translating screw jacks. These kinds of screw jacks use a lift 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 top part of the worm gear package. Secondly, are rotating type screw jacks. In this design, the lift shaft remains stationary and a lifting nut techniques along the lift shaft. Much like the translating screw jacks the screw may also protrude down from the mounting 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 loss of lubrication. Machine-screw jacks feature 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.
