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 as standard be given easy-to-clean and yellow chromated surfaces with stainless steel spindles and food approved lubricants.
If there are particular requirements for the design, 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-performance ball screw and nut that reduces the mandatory insight torque to about one-third the torque necessary for machine-screw jacks. 300 Series Stainless-metal screw jack are for conditions where corrosion level of resistance is essential. Stainless-steel lifting threads are precision shaped 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 area treatments. The modular design is also ideal if there is a need for customisations where in fact the gearbox should be optimized for particular needs. That is the reason why we are able to produce worm equipment screw jacks adapted to your wants at an attractive price.
The worm equipment 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 movements synchronously.

By connecting person screw jacks with drive shafts lifting systems could be realized in a simple way. With the wealthy accessories many problems could be solved with the typical program.
There are two basic types of screw jacks of which a few additional styles originate. Initial, 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 container. The lift shaft can either protrude from the installation flange part of the gearbox or from the top part of the worm equipment container. Secondly, are rotating type screw jacks. In this style, the lift shaft continues to be stationary and a lifting nut techniques 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 produce 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-steel worm, which drives a high-strength bronze worm equipment (drive sleeve). The worm shaft is backed on antifriction tapered roller bearings with external seals to prevent loss of lubrication. Machine-screw jacks include a lifting shaft made of alloy steel with a minimum tensile strength of 95,000 psi. Lead precision is approximately 0.004 in./ft.