RESEARCH PAPERS: Power Transmission and Gearing Papers

Design of Spur Gears for Improved Efficiency

[+] Author and Article Information
N. E. Anderson

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

S. H. Loewenthal

NASA Lewis Research Center, Cleveland, Ohio

J. Mech. Des 104(4), 767-774 (Oct 01, 1982) (8 pages) doi:10.1115/1.3256434 History: Received January 27, 1981; Online November 17, 2009


A method to calculate spur gear system power loss for a wide range of gear geometries and operating conditions is used to determine design requirements for an efficient gearset. The effects of spur gear size, pitch, ratio, pitch-line-velocity, and load on efficiency are shown. A design example is given to illustrate how the method is to be applied. In general, peak efficiencies were found to be greater for larger diameter and fine pitched gears and tare (no-load) losses were found to be significant.

Copyright © 1982 by ASME
Topics: Design , Gears , Spur gears , Stress
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