Professional machine grade robot arm worm gear

Uses for Worm Gears
Worm gears are widely used because they can be produced in a variety of sizes and configurations.Materials(Brass, stainless steel, Titanium, nylon Delrin etc.)，The assortment of dimensions, shapes, and designs make worm gears adaptable for any number of devices and machines.
The connection and motion of the wheel gear and worm gear produce a sliding action with low output speed and high torque. The configuration of the two gears makes for an efficient and specialized type of gearing able to perform specialized tasks.
There are two advantages to worm gears: motion transfer and single direction motion. Worm gears transfer motion at a 90o angle; this is unusual for a gear assembly. The single direction motion of worm gears prevents them from being reversed. Any attempt to change the direction of their motion will cause the worm gear to lockup and stop.