Renqiu Gengxu Machinery Parts Co., LTD
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The core characteristics of helical gears
Dec 17,2025
Spiral tooth design
The gear teeth are spiral shaped, and the contact line changes from short to long and then to short during meshing, achieving progressive meshing and reducing impact.
High compatibility
The number of teeth meshing simultaneously is greater than that of spur gears, and the coincidence degree is composed of the end face coincidence degree (εα) and the axial coincidence degree (εβ), resulting in a smoother transmission.
Axial force generation
Spiral angle causes axial force along the axis direction during transmission, which needs to be offset by thrust bearings or herringbone gear combinations.
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