Why Should We Choose Worm Gear Reducer?
There are a few reasons why one would select a worm gear over other gears.
The first one is the great reduction ratio. A worm gear can have a high reduction ratio with small effort – all one should do is adding margins to the wheel. Thus, you can utilize it to either greatly improve the torque or highly decrease the speed. It will commonly take several reductions of a conventional gearset to obtain the same reduction rate of a simple worm gear – meaning users of worm gears have fewer moving components and fewer spaces for failure.
The second reason to employ a worm gear is the inability to reverse the power direction. Due to the friction between the wheel and the worm, it is effectively impossible for a wheel with the load applied to it to begin the worm moving.
On a normal gear, the output and input can be changed independently when enough load is applied. This makes adding a backstop to a normal gearbox necessary, further raising the complication of the gear configuration.
