A Helical Gear is a type of gear that is used in the transmission system of a vehicle. It is typically located between the reverse gear and the output shaft and is responsible for maintaining proper spacing between the gears in the gear train.Attributes:• Designed to be compact and can be used in confined spaces.• Provided with key space in the gear arrangement for proper alignment.Applications:A Helical Gear rotates freely on its shaft and meshes with the other gears in the gear train to transmit torque and rotational motion.