of involute gear
51Base cylinder — The base cylinder corresponds to the base circle, and is the cylinder from which involute tooth surfaces are developed.1 Notes 1. ANSI/AGMA 1012 G05 , Gear Nomenclature, Definition of Terms with Symbols …
52Profile radius of curvature — is the radius of curvature of a tooth profile, usually at the pitch point or a point of contact. It varies continuously along the involute profile.1 Notes 1. ANSI/AGMA 1012 G05 , Gear Nomenclature, Definition of Terms with Symbols …
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