Synthesis of cam-follower systems with rolling contact

The present work deals with the synthesis of cam follower systems with rolling contact during the rise period of a dwell-rise-dwell return cam. It has been found that the total lift of the follower can not be achieved solely by rolling contact, therefore sliding is permitted for a fraction of the lift. On the basis of minimum work-loss, the respective percentages of contribution by pure rolling contact and rolling cum sliding action have been worked out.