dedendum circle

dedendum circle

[də′den·dəm ‚sər·kəl]
(design engineering)
A circle tangent to the bottom of the spaces between teeth on a gear wheel.
References in periodicals archive ?
For a particular pressure angle on the coast side and drive side of an asymmetric bevel gear, the involute thickness of the teeth depends on radius of addendum and dedendum circle.
2, the radius of the addendum, pitch and dedendum circle at any point can be written as: