Cam Shape 1. Plate cam or disk cam(盘凸轮): The follower moves in a plane perpendicular to the axis of rotation of the camshaft a translating or a swing arm follower must be constrained to maintain contact with the cam profile 2. Grooved cam(槽凸轮) or closed can This is a plate cam with the follower riding in a groove n the face of the camCam Shape 1. Plate cam or disk cam(盘凸轮): The follower moves in a plane perpendicular to the axis of rotation of the camshaft. A translating or a swing arm follower must be constrained to maintain contact with the cam profile. 2. Grooved cam (槽凸轮) or closed cam: This is a plate cam with the follower riding in a groove in the face of the cam