The scuffing behaviour is one of the main fac.torsassociated with the performance of cam follower mechanism. The objective of the present work is to study the scuffing phenomena through the kinematic analysis of various effectsof different types of motion on the elastohydrodynamic (EHD) lubrication properties in cam mechanisms. The contact points of cam follower surfaces at which flash temperature reaches maximum due to poor lubrication are specified. An examination had been developed at each point to investigate the possibility of scuffing occurance and mechanisms failure.