RESEARCH PAPERS: Power Transmission and Gearing Papers

Determination of Gear Ratios

[+] Author and Article Information
W. C. Orthwein

Southern Illinois University, Dept. of Engineering Mechanics and Materials, Carbondale, Ill. 62901

J. Mech. Des 104(4), 775-777 (Oct 01, 1982) (3 pages) doi:10.1115/1.3256435 History: Received January 20, 1982; Online November 17, 2009


Finding the number of teeth for each gear in a gear train required to provide a specified noninteger ratio (or its inverse) of angular velocity between input and output shafts has been a troublesome problem throughout the history of gearing. A direct method for finding the required number of teeth is presented, along with a program for its implementation on a programmable pocket calculator.

Copyright © 1982 by ASME
Topics: Gears , Trains
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