The Tooth Profile Modification in Gear Manufacture


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The gear design always be focus on analyzing the static performance (strength, stress, friction) and dynamic performance (inertia, noise, vibration), and especially for dynamic, the noise and vibration of gear are big problems. Actually, the main reason of noise and vibration is transmission error between master and slave gears, but the error must exist in any manufacture process. To decrease harmful noise and vibration, the most effective method is “tooth profile modification”, which is by tip relief or root relief for modifying geometry profile of gear tooth to regulate transmission error. In the paper, the transmission error of original model and modified model will be compared to show the gear profile modification will influence the transmission error obviously.



Edited by:

Kai Cheng, Yingxue Yao and Liang Zhou




Z. Li and K. Mao, "The Tooth Profile Modification in Gear Manufacture", Applied Mechanics and Materials, Vols. 10-12, pp. 317-321, 2008

Online since:

December 2007





[1] J. Wang and I. Howard, Comprehensive Analysis of Spur Gears in Mesh with Various Types of Profile Modifications: Department of Mechanical Engineering, Curtin University of Technology, Perth, WA, Australia. (2005).

[2] J. D. Smith: Gear Noise and Vibration (Marcel Dekker, Inc., New York 1999, pp.32-34).