pitch circle
an imaginary circle within the profiles of the teeth of a gear, such that it rotates against a similar circle rotating at the same rate on a meshing gear.
Origin of pitch circle
1- Also called pitch line.
Words Nearby pitch circle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use pitch circle in a sentence
And to pencil in the teeth these circles must be fully drawn, as in Figure 234, in which P P is the pitch circle.
Mechanical Drawing Self-Taught | Joshua RoseWhere these divisions intersect the pitch circle are the centres from which all the teeth curves may be drawn.
Mechanical Drawing Self-Taught | Joshua RoseWhen two gears of equal size mesh together, the pitch line, or the pitch circle, as it isp.
Practical Mechanics for Boys | J. S. ZerbeIn fact, if a jewel pin was set to engage the fork on the pitch circle b a, the escapement would lock.
Watch and Clock Escapements | AnonymousThe circle b b represents the pitch circle of the jewel pin, and the circle at c c the periphery of the guard or safety roller.
Watch and Clock Escapements | Anonymous
British Dictionary definitions for pitch circle
an imaginary circle passing through the teeth of a gearwheel, concentric with the gearwheel, and having a radius that would enable it to be in contact with a similar circle around a mating gearwheel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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