Addendum circle

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Related to Addendum circle: Bull gear
(Mech.) the circle which may be described around a circular spur wheel or gear wheel, touching the crests or tips of the teeth.
- Rankine.

See also: Addendum

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Where i=1, 2 (i=1 for pinion and i=2 for gear) j = A, P, D (A- Addendum circle, P- Pitch circle, D- Dedendum circle) and b = Face width, B =cone distance of the bevel gear.