The tooth profile of spiral bevel gears is arc-shaped, and they are generally cone-shaped, like an umbrella shape, hence the name spiral bevel gears. Spiral bevel gear is a transmission part that can be transmitted smoothly and with low noise according to a stable transmission ratio. It has different names in different regions. It is also called spiral bevel gear, spiral bevel gear, spiral bevel gear, arc bevel gear, Spiral bevel gears, etc.