A bevel gear is a type of gear that is used to transmit power between two intersecting shafts at a right angle. It has conically-shaped teeth that allow it to mesh with another bevel gear or a spur gear. Bevel gears can have different gear ratios and angles between the shafts, which makes them versatile for use in many different types of machinery and equipment.

There are different types of bevel gears, including straight bevel gears, spiral bevel gears, and hypoid bevel

gears. Straight bevel gears have straight teeth and are the simplest and most common type of bevel gear. Spiral bevel gears have curved teeth, which allows for a smoother and quieter operation. Hypoid bevel gears are similar to spiral bevel gears but have offset shafts, which makes them suitable for use in more compact and complex machinery.

Bevel gears are commonly used in automotive, aerospace, and industrial applications, as well as in hand tools and household appliances. They offer several advantages, such as high efficiency, smooth operation, and the ability to transmit power over long distances. However, they can also produce axial thrust, which can lead to additional wear and tear on the gears and bearings.