A _____ circle is the circle from which the involute tooth profile begins.

Name: A _____ circle is the circle from which the involute tooth profile begins.
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Question

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The base circle is the circle from which the involute tooth profile begins. The dedendum circle is the circle to which the tooth profile extends at the bottom, while the addendum circle is the circle to which the tooth profile extends at the top. The pitch circle is the circle that represents the average diameter of the gear wheel.

A _____ Circle Is the Circle from Which the Involute