Bevel gears are designed to transmit motion between two surfaces that are at right angles to each other. The teeth on these gears are cut at an angle which allows them to mesh together and transfer power from one shaft to another. This gear is typically used in applications where speed reduction or torque multiplication is crucial, such as automotive transmissions.

 

How do bevel gears work?

This gear type works by meshing the teeth of two gearwheels together. The gearwheels, mounted on shafts at right angles to each other, engage with the teeth of the gearwheel. As one gearwheel turns, it drives the other gearwheel, which causes it to turn at a slower speed. The gear ratio between the two gearwheels determines the amount of speed reduction or torque multiplication achieved.

 

What are the benefits of bevel gears?

This gear type offers several advantages over other gears, such as spur and helical gears. Bevel-type gears can transmit power at right angles, making them ideal to use in applications where space is limited. They also provide more efficient power transmission than spur gears and helical gears. They also generate less noise and vibration.

 

Features of the bevel type of gears

One of the distinct features of this type of gear is that the tooth-bearing base is conical in shape. The axes of the two shafts intersect, making them effective in torque transfer. Bevel gears work best when mounted on shafts that are 90 degrees apart from each other. 

 

Pitch angle is an essential factor used to categorize this type of gear. If the pitch surface of the gear is less than 90 degrees, they are classified as external gears. This is because the teeth in them point outwards. As opposed to this, if the pitch surface is more than 90 degrees, they are classified as internal gears. The teeth in internal gears point inwards.

 

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