Herringbone gears and Double helical gears are two types of gears

Herringbone gears and Double helical gears are two types of gears

• Herringbone gears

In some situations, so-called herringbone gears are utilized to combine the benefits of helical gears (greater load capacity and fewer noise emissions) with the benefits of spur gears (no axial force and lower wear).

Because the helices are aligned with one other, each side experiences an opposing axial force, which cancels out. This eliminates the need for the bearing to absorb axial thrust.

Miter gears may transmit a lot of torque because of their lengthy tooth lengths (due to the tilting). However, because to its complexity and high cost, this type of gear is only used for a few specific applications. (For instance, huge transfers). Furthermore, due to the inaccessibility, additional fine machining of the teeth is very difficult (e.g. through grinding).

• Double helical gears

In theory, a mirrored arrangement of two helical gears with their respective tooth surfaces tapering in an arrowhead form can produce the same effect as a miter gear. Double helical gears are the name for such gears.

Because the corresponding spiral half is made on the same shaft, a groove in the center is required to allow the production tool to escape. Miter gears are more expensive to manufacture than double helical gears.

Because of the exact arrangement with the pair gears, it is nearly difficult to combine two independent helical gears to produce a "double helical gear" in actuality.

Do you have any specific questions about the design or manufacture of Herringbone gears and Double helical gears? Contact Yogie! Our sales engineers will work with you from start to finish to ensure that your project is completed to your requirements.

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