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RESEARCH PAPERS: Power Transmission and Gearing

Endurance and Failure Characteristics of Modified Vasco X-2, CBS 600 and AISI 9310 Spur Gears

[+] Author and Article Information
D. P. Townsend, E. V. Zaretsky

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135

J. Mech. Des 103(2), 506-513 (Apr 01, 1981) (8 pages) doi:10.1115/1.3254946 History: Received February 01, 1980; Online November 17, 2009

Abstract

Gear endurance tests and rolling-element fatigue tests were conducted to compare the performance of spur gears made from AISI 9310, CBS 600 and modified Vasco X-2 and to compare the pitting fatigue lives of these three materials. Gears manufactured from CBS 600 exhibited lives longer than those manufactured from AISI 9310. However, rolling-element fatigue tests resulted in statistically equivalent lives. Modified Vasco X-2 exhibited statistically equivalent lives to AISI 9310. CBS 600 and modified Vasco X-2 gears exhibited the potential tooth fracture occurring at a tooth surface fatigue pit. Case carburization of all gear surfaces for the modified Vasco X-2 gears results in fracture at the tips of the gears.

Copyright © 1981 by ASME
Topics: Gears , Failure , Spur gears
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