Question

A 65-tooth spur gear is in mesh with a 32-tooth pinion. For a diametral pitch equal to 7 and pressure angle equal to 20 degrees. Find the circular pitch in mm.

Answer 1

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

$p=\frac{\pi}{P}\\\Rightarrow p=\frac{\pi}{7}\\\Rightarrow p=0.4488\ mm$

So, the circular pitch is 0.4488 mm