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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1621

Title: Tooth bending fatigue failures in gears
Authors: Fernandes, PJL
Keywords: Gear failures
Tooth bending fatigues
Metallurgical examinations
Issue Date: Sep-1996
Publisher: Pergamon-Elsevier Science Ltd
Citation: Fernandes, PJL. 1996. Tooth bending fatigue failures in gears. Enginering failure analysis, vol 3 (3), pp 219-225
Abstract: A gear is a machine element designed to transmit force and motion from one mechanical unit to another. The design and function of gears are usually closely associated, since gears are designed for a specific function. Various types of gears have been developed to perform different functions, the most common of these being spur gears, helical gears, straight and spiral bevel gears, and hypoid gears. The characteristics of these various gear types are discussed in most mechanical design texts. Like all mechanical components, gears can and do fail in service for a variety of reasons. In most cases, except for an increase in noise level and vibration, total gear failure is often the first and only indication of a problem. Many modes of gear failure have been identified, for example fatigue, impact, wear or plastic deformation. Of these, one of the most common causes of gear failure is tooth bending fatigue. Tooth bending fatigue is one of the most common modes of fatigue failure in gears. It results in progressive damage to gear teeth and ultimately leads to complete failure of the gear. The characteristics of this failure mode are discussed in detail and a number of actual case studies are presented which show the occurrence of this failure mode in practice.
URI: http://hdl.handle.net/10204/1621
ISSN: 1350-6307
Appears in Collections:Manufacturing science and technology
General science, engineering & technology

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