Why Worm Gears Can be a Practical Solution



You’re likely to consider worm gears if you’re a machine manufacturer or user seeking the ideal kind of gears, taking into account the matters of costs, space, and efficiency. Certainly, worm gears do not feature the most efficient design, however, there are so many advantages of these gears that make them a suitable choice. Read more great facts on Reverse engineering gears, click here.

Warm Gears: How They Work

There are two components in a worm gear–worm gear and worm wheel. The worm gear is typically made of steel while the worm wheel is made of bronze. The gears work on a sliding action and not rolling, which is typical of other kinds of gears. The sliding action results in friction which negatively affects the efficiency of these gears. Usually, the efficiency of worm gears may range from 40% to 90%. Lower efficiency means that these gears will use more power to do the same task than if a more efficient gear type is used. For more useful reference regarding Custom gears Cleveland, have a peek here.

Solving the Concern of Worm Gear Efficiency

The sliding of the worm gear and worm wheel negatively affects the efficiency of the system, but there’s a way around the issue. The most effective way to resolve the matter of efficiency in worm gears is lubrication to minimize friction. Applying an oil lubricant in a worm gearbox will minimize friction, heating, and loss of energy. Efficiency of the gear system increases with reduction in friction.

Because the system employs two different metals, one for the worm wheel and the other for the worm gear, an enhanced efficiency level may also be achieved. There’s less friction between the bronze worm wheel and the steel worm gear owing to the softness of the former.

The Reasons You Should Still Use Worm Gears

Despite worm gears being not the most efficient, they have many advantages that make them suitable for a wide range of applications. Firstly, the gears are quieter in operation due to their sliding action, unlike other gear types. Also, it is possible to have a low number of teeth on worm gears, making it possible to attain higher ratios with just a couple of gears. And since the bronze worm wheel is soft, the gears have superior shock absorbing characteristics.

Worm gears can be compact in size, and that’s a benefit. Because you can achieve higher ratios with fewer gear sets, you can also come up with smaller worm gear boxes. In addition, worm gears can have self-locking design that makes them suitable for braking applications. When it is impossible to back-drive worm gears, these can be used in lifts, cranes, and other scenarios where braking is required.

Worm gears are some of the most practical for manufacturers as well as end-users because of their many benefits.


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