RESEARCH PAPERS: Power Transmission and Gearing

Rating Gear Strength

[+] Author and Article Information
G. Castellani

Working Group on Gear Rating, UNI; Rossi Motoriduttori Co., Modena, Italy

V. P. Castelli

Institute of Applied Mechanics, University of Bologna, Bologna, Italy

J. Mech. Des 103(2), 516-527 (Apr 01, 1981) (12 pages) doi:10.1115/1.3254949 History: Received February 01, 1980; Online November 17, 2009


Synthetic formulas are written suitable to represent and compare the AGMA and ISO Standards for rating gear tooth strength. The corresponding tooth form and stress correction factors are compared for different kinds of involute gear teeth. A unified procedure is given to enable computing of the root parameters for teeth generated by any kind of tool which completes the ISO method, extending it to the case of shaped teeth. Both AGMA and ISO methods are also applied to the calculation of the aforesaid factors for internal gear teeth. In this case reliability is checked by finite element method. The comparison shows that research is necessary to review some items relating to calculation of stress correction factors.

Copyright © 1981 by ASME
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