Span Engineers supplies Two Teeth Attached Helical Gear. Span Engineers offers various types of Spur gear, bevel gears, worm wheel, worm wheel, rack & pinion, internal gears, spine shaft, sprockets, timing belt pulleys, reduction gearbox, helical gearbox, placatory gearbox, right angle gearbox shafts etc. The teeth on helical gears are cut at an angle to the face of the gear. When two teeth on helical gear system engage, the contact starts at one end of the tooth and gradually spreads as the gears rotate, until the two teeth are in full engagement.