AISI 4340 Steel Assembled Herring Bone Gear Transmission Spare Parts

A herringbone gear, a specific type of double helical gear, is a special type of gear which is a side-to-side (not face-to-face) combination of two helical gears of opposite hands. From the top, the helical grooves of this gear look like the letter V. Unlike helical gears, they do not produce an additional axial load.

Herringbone gears mate via the use of smooth, precisely manufactured V-shaped teeth. Like helical gears, multiple teeth are engaged during rotation, distributing the work load and offering quiet operation. However, due to their tooth structure, herringbone gears nullify the axial thrust typical of helical gears.