Abstract
Gears are one of the most critical components in mechanical power transmission systems. The bending and surface strength of the gear tooth are considered to be one of the main contributors for the failure of the gear in a gear set. Thus, analysis of stresses has become popular as an area of research on gears to minimize or to reduce the failures and for optimal design of gears. The helical gears can fail due to excessive bending stress at the root of gear tooth or surface contact stresses. This can be avoided only by minimizing bending stresses and contact stress or by modifying the geometry or parameters of the gear tooth. This paper presents the comparative study of bending stress and contact stress of helical gear using AGMA standard and FEA. Ultimately results of two methods compared with respect to each other.
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