The BJ worm gear screw jack is designed in several different versions and happens to be used in countless solutions within Healthcare, the Food Industry and other industries.

All worm gear screw jacks may because standard be supplied with easy-to-clean and yellow chromated surfaces with stainless steel spindles and food approved lubricants.
If there are unique requirements for the design, we are pleased to offer adaptations actually in smaller quantities.

The spindles can be protected from dirt and water through the use of protecting tubes.

Ball-screw jacks include 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 conditions where corrosion level of resistance is essential. Stainless-metal lifting threads are precision produced to Class 2-C (centralizing) thread profiles.
The look is compact, simple and its modular construction allows great flexibility in the choice of gear, installation options, flanges, oil types and surface treatments. The modular design is also ideal when there is a need for customisations where the gearbox must 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 equipment 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 individual screw jacks with drive shafts lifting systems can be realized in a straightforward way. With the wealthy accessories many problems could be solved with the typical program.
There are two basic types of screw jacks 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 right out of the worm gear box. The lift shaft can either protrude from the mounting flange part of the gearbox or from the top part of the worm equipment package. Secondly, are rotating type screw jacks. In this design, the lift shaft continues to be stationary and a lifting nut moves along the lift shaft. Similar to the translating screw jacks the screw may 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 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 external seals to prevent loss of lubrication. Machine-screw jacks feature a lifting shaft made of alloy steel with a minimum tensile strength of 95,000 psi. Lead accuracy is around 0.004 in./ft.