Pitch surfaces are the imaginary planes, cylinders, or cones that roll together without slipping. For a constant velocity ratio, the pitch cylinders and pitch cones are circular.1
Notes
1. "ANSI/AGMA 1012-G05", "Gear Nomenclature, Definition of Terms with Symbols".
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Pitch plane — The pitch plane of a pair of gears is the plane perpendicular to the axial plane and tangent to the pitch surfaces. A pitch plane in an individual gear may be any plane tangent to its pitch surface.The pitch plane of a rack or in a crown gear is… … Wikipedia
Pitch and putt — is an amateur sport, similar to golf but organized as an independent sport, played and developed mainly in Ireland since the 1940s. The maximum length of hole for international competitions is defined up to 90 metres (with a total length of… … Wikipedia
pitch — pitch1 pitchable, adj. /pich/, v.t. 1. to erect or set up (a tent, camp, or the like). 2. to put, set, or plant in a fixed or definite place or position. 3. to throw, fling, hurl, or toss. 4. Baseball. a. to deliver or serve (the ball) to the… … Universalium
pitch — I [[t]pɪtʃ[/t]] v. t. 1) to erect or set up (a tent, camp, or the like) 2) to put, set, or plant in a fixed or definite place or position 3) to throw, fling, hurl, or toss 4) spo baseball a) to deliver or serve (the ball) to the batter b) spo to… … From formal English to slang
pitch — I. /pɪtʃ / (say pich) verb (t) 1. to set up or erect (a tent, camp, etc.). 2. to put, set, or plant in a fixed or definite place or position (as cricket stumps, etc.). 3. to set or aim at a certain point, degree, level, etc.: he pitched his hopes …
pitch control — i. That giving manual control of the propeller pitch as is done in a constant speed unit where datum is moved manually. In a variable pitch propeller, the act of changing the pitch of the propeller. The pitch changes are done through pitch… … Aviation dictionary
pitch surface — noun Etymology: pitch (IV) : the surface of either of two tangent imaginary friction wheels having the same axes and the same angular velocities as those of a pair of real gears in mesh * * * (in a gear or rack) an imaginary surface forming a… … Useful english dictionary
pitch surface — (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 … Universalium
pitch chisel — Masonry. a broad edged chisel for cutting plane surfaces on stones. * * * … Universalium
pitch chisel — Masonry. a broad edged chisel for cutting plane surfaces on stones … Useful english dictionary
