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Review Article Open Access
This article presents a survey of the various considerations and methods for the kinematic design of gear drives. The gear drive must provide best possible efficiency, reliability of function and service life for the application it designed for. The geometrical shape of the teeth of the gears in mesh not only affects the performance of the gear drive but also the strength of gear tooth significantly. Friction is very significant factor affects the efficiency and wears failure of gears. Friction is also depends on the profile of gear teeth and contact pressure between the surfaces of gear teeth in mesh during the operation of gar drive. Sometimes, the performance of gears in mesh can be improved by providing small modifications in the gear tooth profile. The gear drive must run without interference and having higher contact ratio for its smooth operation. .A good amount of literature available on date dealt with the various methods using various kinematic and geometrical considerations to achieve best possible performance of the gear drive. These methods used few common and few different assumptions giving different results. Therefore the objective of this article is to provide a survey to select a concept for geometric and kinematic design of gear tooth to enhance the performance of any existing gear drive.