A COMPARATIVE STUDY OF DESIGN OF SIMPLE SPUR GEAR TRAIN AND HELICAL GEAR TRAIN WITH A IDLER GEAR BY AGMA METHOD
Keywords:
bending stress,, contact stress., Spur gearAbstract
In recent times, the gear design has become a highly complicated and comprehensive subject. A designer of modern gear drive system must have to remember that the main objective of gear drive is to transmit higher power with comparatively smaller overall dimensions of the driving system which can be constructed with minimum possible manufacturing cost, runs reasonably free of noise and vibration and which requires little maintenance. In this paper single stage spur gear train and helical gear train with a idler gear are designed by American Gear Manufacturing Association (AGMA) standard. A idler gear is placed between two gearwheel to obtained the same direction of rotation. AGMA stress equation is used to determined the tooth bending strength and surface contact strength. As a result, dimensions of gears are find out and comparative study is carried out to select the optimum design of gear train for a given input parameter
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