Answer:
0.4488 mm
Explanation:
Number of teeth in spur gear = 65
Number of teeth in pinion = 32
Diametral pitch = 7 = P
pressure angle = ∅ = 20°
Circular pitch of measured on the pitch circle is defined as the distance between two corresponding points.
Circular pitch
[tex]p=\frac{\pi}{P}\\\Rightarrow p=\frac{\pi}{7}\\\Rightarrow p=0.4488\ mm[/tex]
So, the circular pitch is 0.4488 mm