Abstract
In this paper, a comparative analysis of the service life of gears for various failure criteria is carried out. Based on this analysis, a method is proposed for selecting the gearwheel material, the values of the modulus and the wheel width factor, on which the bending strength of the teeth depends. Research has shown that increasing the bending strength of teeth is of great practical importance, both for one-sided and two-sided loads. This also makes it possible to significantly increase the lifetime of one-side loaded gearwheels by replacing their working flanks with non-working ones. In this regard, a method has been developed for changing the working flanks of gear teeth after a certain operating life.
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