Cams

Question 1

Pear shaped cam

Answer 1

used on camshafts in car engines. The follower remains motionless for about half of the rotation of the cam

Question 2

Eccentric shaped cam

Answer 2

sometimes called ‘circular’ cams; they produce a smooth motion. These cams are used in pull along toys

Question 3

Hear shaped cam

Answer 3

These cams allow the follower to rise and fall with ‘uniform’ velocity