High strength transmission gears have been developed for use in the final gear set of front-wheel-drive vehicles. The steel used as the gear material has a higher molybdenum content, allowing more austenite to be retained following carburizing than is possible with chromium steel. As a result, the steel can be subjected to higher intensity shot peening by using harder peening particles which are projected by an air-nozzle peening system. With this procedure, the fatigue strength of the gears can be increased 1.6 times over that of conventional gears.
Development of High Strength Transmission Gears
Sae Technical Papers
International Congress & Exposition ; 1992
1992-02-01
Conference paper
English
Development of high strength transmission gears
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