The pitch diameter of a spur gear having 40 teeth and a diametrical pitch of 20 is 19.68.

Name: The pitch diameter of a spur gear having 40 teeth and a diametrical pitch of 20 is 19.68.
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Question

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The pitch diameter of a spur gear is calculated by dividing the number of teeth by the diametrical pitch. For a gear with 40 teeth and a diametrical pitch of 20, the pitch diameter is 40 / 20 = 2 inches.

The Pitch Diameter of a Spur Gear Having 40 Teeth