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Specified pitches and leads of the worm do not permit the worm gear to generate the worm. This is valuable when the software wants to lock the output if the application is running in the opposite direction. When the helix angle is much less than 5°, the worm is self-locking. When the helix angle is higher than 10°, the worm can be pushed again. Worm and worm equipment assemblies must be mounted on vertical, non-intersecting shafts.
The effectiveness of a worm equipment transmission is dependent to a big extent on the helix angle of the worm. Multi-threaded worms and gears with higher helix angles have verified to be twenty five% to 50% much more successful than solitary-threaded worms. The sliding action of the worm meshing with or meshing with the worm equipment benefits in considerable friction and reduction of efficiency in contrast to other kinds of gears. Improve efficiency with hardened and ground worm switch bronze worm gears.

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