pitch plane

noun Machinery.
See under pitch surface.
Dictionary.com Unabridged

pitch surface

noun
(in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.

Origin:
1885–90

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To pitch plane
Example sentences
In developing a computer simulation, a pitch plane model of the crane was developed.
All vehicle modeling reported herein used only three degrees of freedom without any attempt to verify trim in the pitch plane.
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