When helical gears transmit motion between two parallel shafts, end thrust may be avoided by using herringbone gears. Herringbone gears are basically two helical gears placed side by side, with opposite hands of teeth.

Akron Gear cuts herringbone gears on Sykes Herringbone gear cutters from 2″ outside to 72″ Outside Diameter.



  • Up to 72″ in Diameter
  • 2 Diametral Pitch
  • 12 Module
  • 380 Max BHN
  • AGMA Class 8
  • Sykes Herringbone Gears
  • Double Helicals