In the 15 years that F. Helical gear design pdf Between Atlas Gear Co.
Just tell us what you need, how many, and when you need them, and your parts will be there, on time, and right the first time. Unlike helical gears, herringbone gears do not produce an additional axial load.
Like helical gears, they have the advantage of transferring power smoothly because more than two teeth will be in mesh at any moment in time. Their advantage over the helical gears is that the side-thrust of one half is balanced by that of the other half. This means that herringbone gears can be used in torque gearboxes without requiring a substantial thrust bearing.
Because of this herringbone gears were an important step in the introduction of the steam turbine to marine propulsion. Precision herringbone gears are more difficult to manufacture than equivalent spur or helical gears and consequently are more expensive.
They are used in heavy machinery. Where the oppositely angled teeth meet in the middle of a herringbone gear, the alignment may be such that tooth tip meets tooth tip, or the alignment may be staggered, so that tooth tip meets tooth trough. The latter alignment is the unique defining characteristic of a Wuest type herringbone gear, named after its inventor.