RESEARCH PAPERS: Power Transmission Gearing Papers

A New Approach to Gear Tooth Root Stresses

[+] Author and Article Information
B. A. Shotter

Westland Helicopters Ltd., Yeovil, Somerset, England

J. Eng. Ind 96(1), 11-18 (Feb 01, 1974) (8 pages) doi:10.1115/1.3438285 History: Received July 24, 1972; Online July 15, 2010


Observed root stresses and crack initiation points on high strength toothforms were found to be inconsistent with the predictions of conventional bending beam theory. Alternative stressing methods have been used and a new simple model offers a better understanding of the observed results. However, high strength toothforms require a greater knowledge of the material fatigue properties than has hitherto been considered necessary; failures are not always associated with maximum tensile stresses.

Copyright © 1974 by ASME
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