worm gear screw jack

The BJ worm gear screw jack was created in a number of different versions and is currently found in countless solutions within Healthcare, the meals Industry and other industries.

All worm equipment screw jacks may because standard be supplied with easy-to-clean and yellowish chromated areas with stainless steel spindles and meals approved lubricants.
If there are special requirements for the design, we are very happy to offer adaptations also in smaller quantities.

The spindles could be protected from dirt and water through the use of 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 required for machine-screw jacks. 300 Series Stainless-metal screw jack are for environments where corrosion resistance is essential. Stainless-metal lifting threads are precision produced to Course 2-C (centralizing) thread profiles.
The design is compact, simple and its modular construction allows great flexibility in the choice of gear, mounting options, flanges, oil types and surface treatments. The modular style is also ideal if there is a dependence on customisations where the gearbox should be optimized for specific needs. That is the reason why we can produce worm gear screw jacks adapted to your desires at an attractive price.
The worm equipment screw jack allows for axial positioning and together with our other products within the field of encoders, couplings and connecting shafts, it permits 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 standard program.
There are two basic types of screw jacks of which a few additional styles originate. 1st, there are translating screw jacks. These types of screw jacks use a lift shaft or screw that travels into or right out of the worm gear package. The lift shaft can either protrude from the mounting flange side of the gearbox or from the very best part of the worm equipment box. 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 installation 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 a choice.
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 exterior 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 precision is approximately 0.004 in./ft.


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Gear Coupling

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