RESEARCH PAPERS: Power Transmission and Gearing Papers

Life and Reliability Modeling of Bevel Gear Reductions

[+] Author and Article Information
M. Savage, C. Brikmanis

The University of Akron, Akron, Ohio 44325

D. G. Lewicki, J. J. Coy

Propulsion Laboratory, AVSCOM Research and Technology Laboratories, NASA Lewis Research Center, Cleveland, Ohio 44135

J. Mech., Trans., and Automation 110(2), 189-196 (Jun 01, 1988) (8 pages) doi:10.1115/1.3258925 History: Received October 01, 1987; Online November 19, 2009


A reliability model is presented for bevel gear reductions with either a single input pinion or dual input pinions of equal size. The dual pinions may or may not have the same power applied for the analysis. The gears may be straddle mounted or supported in a bearing quill. The reliability model is based on the Weibull distribution. The reduction’s basic dynamic capacity is defined as the output torque which may be applied for one million output rotations of the bevel gear with a 90 percent probability of reduction survival. The components on which the reduction’s life and reliability are based are the bevel gears and their radial and thrust bearings.

Copyright © 1988 by ASME
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