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An electric motor rotational power via to the worm. The worm rotates against the wheel, and the screw face pushes on the teeth of the wheel. The wheel is pushed against the load.
A worm gear can have a massive reduction ratio with little effort – all one must do is add circumference to the wheel. Thus you can use it to either greatly increase torque or greatly reduce speed. It will typically take multiple reductions of a conventional gear set to achieve the same reduction level of a single worm gear – meaning users of worm gears have fewer moving parts and fewer places for failure.

Shirley Soulutions support in wide range of worm gear with high range of sizes and ratio.
For more info contact us.

The simple planetary gearbox comprises of the axial sun gear, 
planet carrier and outer gear sub-assemblies, and is combined with the 
planet gears rotating at constant centres about the planet carrier. 
The input is from the sun gear and the drive motion to the planet carrier is via the planet gears. 
The rolling contact of the planet gears with the outer gear provides the appropriate ratio. 

 Shirley Soulutions support in wide range of planetary gear with high range of sizes and ratio, high Efficiency,

Low backlash (less then 5 arc min)