A Bevel Gear is a toothed rotating machine device that transfers mechanical energy or shaft power between shafts that cross at an angle or perpendicularly. The shaft power's rotational axis changes as a result of Gear with A Bevel. The operating angle can be adjusted with this gear. The mechanical advantage can be altered by varying the number of teeth on each wheel. Heavy machinery uses bevel gears for propulsion or auxiliary units, much as a car's differential system. In the aviation sector, bevel gears are employed in helicopter power transmission systems and airplane accessory gearbox drivers.