Bevel gears are used to connect shafts whose axes lie at an angle to each other, although in most applications the shafts are at right angles. The tooth profile is basically the same as used for spur gears except that the tooth gets progressively smaller as it approaches the apex of the projected cone.
Indeed, bevel gears are important because they are used in many everyday machineries.
- Hand drills. Perhaps the most famous use of bevel gears is in hand drills.
- Cars. Specifically, bevel gears are used in the differential drives that are found in cars.
- Mechanical garage doors.
Bevel gears are rotating machine elements used to transmit mechanical power between two intersecting shafts, either perpendicular or at an angle. Aside from changing the axis of rotation, bevel gears can also produce a mechanical advantage by increasing the output torque.