国 上海文通大学 Cam-follower Type Shape of follower contact surface > Flat-face(平底从动件) Package smaller eg.Automotive valve) Roller(滚子从动件) Lower friction,but more expensive >Mushroom Roller Mushroom Flat-Faced Follower Follower Follower 4 Follower Follower Follower Spring Spring Spring Cam Cam a 圈上泽夫道大学 ▣ Follower types Cam (a)Cam with knife (6)Cam with roller (c)Cam with flat edge follower. faced follower. pherical faced ●tse (d)Cam with spherical (e)Cam with spherical 价Cam wit恤offset faced follower. faced follower. follower. 55  Shape of follower contact surface  Flat-face(平底从动件) • Package smaller ( eg. Automotive valve)  Roller（滚子从动件） • Lower friction , but more expensive  Mushroom Cam-follower Type Roller Follower Mushroom Follower Flat-Faced Follower Flat-Faced Follower Mushroom Follower Roller Follower  Follower types