Question

A circle drawn with centre as the cam centre and radius equal to the distance between the cam centre and the point on the pitch curve at which the pressure angle is maximum, is called

Option A:
base circle

Option B:
pitch circle

Option C:
prime circle

Option D:
Secondary circle

Answer 1

Answer:

$PRIME$      $CIRCLE$

Explanation:

Answer 2

Pitch circle

A circle drawn with the centre as the cam centre and radius equal to the distance between the cam centre and the point on the pitch curve at which the pressure angle is maximum is called a pitch circle.

• Base circle is the smallest circle that can be drawn to the cam profile.
• A Pitch circle is a circle drawn from the centre of the cam through the pitch points.
• The Prime circle is the smallest circle that can be drawn from the centre of the cam and  tangent to the pitch curve.