Helical Gears with Long Teeth are used to mesh two shafts that are not parallel. These Helical Gears have longer and strong teeth to facilitate ease of operation. These Helical Gears can carry heavy load because of the greater surface contact with the teeth. Helical Gears with Long Teeth ensure quiet gearing with less vibration and can also be used in a crossed gear mesh connecting two perpendicular shafts.