Gear reducer is a device that is used to increase the torque of a particular motor while slowing down the output speed. The worm gear is one of the most popular and most efficient types of gears which got its name as a result of of its work-looking form. This cylindrical screw, set in a 90-degree angle to the worm wheel, is able to reduce the gear ratio in a short period of time. Compared to spur gears, worm gears take a lot less space, making worm geared motors more efficient.

Most worm gear models operate in a forward direction only, because the high frictions between the worm and the worm wheel does not allow the worm to drive backwards. This makes worm geared motors perfect for all sorts of hoisting operations where the reverse direction would be dangerous and damaging for the environment. Since worm gear reducers are light-weighted and small-sized, they are most commonly featured in small electric motors. Mining applications, metalworking tasks, rudders, conveyors and presses are some of the most common applications for worm geared motors.

If you still have your doubts, here are few great reasons to choose a worm gear reducer.

• Great Cost-To-Torque Ratio: Most engineers make their decision based on comparing cost to the torque that the gears provide. This characteristic makes the worn gear reducer the undisputed champion. Worm geared motors provide more input shaft rotations per output shaft rotations than any other geared motor type. The gear reductions that these reducers provide are produced in three gearing stages with other gear types. This makes them exceptionally cost-efficient.

• Widely Available & Easy To Interchange – Since the demand for worm gear reducers is constantly on the rise, most gear manufacturers maintain a large supply of them. Moreover, the mounting dimensions of all worm gears have been standardized, so they are universal across all manufacturers. Therefore, you will not have to worry about height, length or any other dimension.

• Back-up Breaking – The single-start worm gear models move in a forward direction only. Therefore, worm geared motors act as back-up breaks also, which means that they can transmit the load from the reducer to the load. This makes a perfect setup for a variety of lifting applications. They can also protect a load break from a sudden release, which is caused by premature failure or overheating.
• Quieter Operation – Regardless how this may sound to you, high noise levels can be extremely annoying. The frequent and sudden gear tooth contacts in other gear types create a lot of noise, while government agencies require minimized noise levels. As the Superman comes from Krypton to save the Earth, the worm gear reducers are here to “quietly” save the day for engineers.