Abstract:The cam-roller system, commonly used in heavy duty truck applications, consists in a roller follower actuated by the engine camshaft to transmit the cam linear movement. At the application under study, the contact to the cam is through a roller made of 100Cr6 bearing steel. In a Dynamometer test, two out of six rollers presented an unacceptable level of wear, characterized by formation of pitting and spalling, typical of contact fatigue wear. Plastic deformation caused by high friction sliding was also detecte… Show more
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