The BJ worm gear screw jack is designed in a number of 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-colored chromated areas with stainless steel spindles and food approved lubricants.
If there are special requirements for the look, we are very happy to offer adaptations also in smaller quantities.
The spindles could be protected from dirt and water by using protecting tubes.
Ball-screw jacks include a high-effectiveness ball screw and 
nut that reduces the required insight torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-steel screw jack are for conditions where corrosion level of resistance is essential. Stainless-metal lifting threads are precision shaped to Course 2-C (centralizing) thread profiles.
The look is compact, simple and its own modular construction allows great flexibility in the decision of gear, mounting options, flanges, oil types and surface area treatments. The modular design is also ideal when there is a need for customisations where in fact the gearbox should be optimized for particular 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 together with our other products within the field of encoders, couplings and connecting shafts, it allows for running more axial actions 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 standard program.
There are two basic types of screw jacks of which a few additional styles originate. 1st, there are translating screw jacks. These kinds of screw jacks make use of 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 side of the gearbox or from the very best part of the worm equipment package. Secondly, are rotating type screw jacks. In this design, the lift shaft remains stationary and a lifting nut techniques along the lift shaft. Similar to the translating screw jacks the screw may also protrude down from the mounting flange or up from the top of the jack. To create translation of the lift shaft or nut, both configurations should be secured to avoid rotation. Where this is unfeasible, keyed screw jacks are a choice.
Each model’s worm-gear-set arrangement uses an alloy-steel 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 manufactured from alloy steel with a minimum tensile strength of 95,000 psi. Lead precision is around 0.004 in./ft.