Theory of Machine
The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the

Pitch curve
Base circle
Pitch circle
Prime circle

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Theory of Machine
The maximum fluctuation of speed is the

Sum of maximum and minimum speeds
Difference of the maximum and minimum speeds
Variations of speed above and below the mean resisting torque line
Difference of minimum fluctuation of speed and the mean speed

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