worm gear screw jack

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

All worm equipment screw jacks may since standard be given easy-to-clean and yellow chromated surfaces 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 through the use of protecting tubes.

Ball-screw jacks include a high-effectiveness ball screw and nut that reduces the mandatory insight torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-steel screw jack are for environments where corrosion 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, mounting options, flanges, oil types and surface treatments. The modular style is also ideal when there is a dependence on customisations where in fact the gearbox must be optimized for particular needs. That’s the reason why we are able to produce worm equipment screw jacks adapted to your desires at an attractive price.
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 allows for running more axial movements synchronously.

By connecting individual screw jacks with drive shafts lifting systems could be realized in a straightforward way. With the rich accessories many problems can be solved with the typical 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 use a good start 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 very best aspect 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. Much like the translating screw jacks the screw can 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 prevent rotation. Where that 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 supported 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 the very least tensile strength of 95,000 psi. Lead precision is approximately 0.004 in./ft.

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