In a cam and follower mechanism, cam is a

SOLUTION

Explanation:

Cam and Follower 

• A rotating machine element which gives reciprocating or oscillating motion to a second element is known as cam.
• The second element is called a follower.
• The cam usually rotates at a constant speed and drives the follower whose motion depends upon the shape of the cam.
• Almost always the cam is driver and follower is driven.

Therefore, The rotating member is a cam which can also be called as the driver.

 

Depending upon the shape and axis of motion, the following types of cam followers are used in practice:

• Pointed or knife-edge followers
• Roller followers
• Flat face followers
• Spherical followers