A pitch circle (operating) is the curve of intersection of a pitch surface of revolution and a plane of rotation. It is the imaginary circle that rolls without slipping with a pitch circle of a mating gear. These are the outlines off the imaginary smooth roller or friction discs in every pair of mating gears. Many important measurements are taken on and from this circle.
Read more about this topic: List Of Gear Nomenclature
Famous quotes containing the words pitch and/or circle:
“I dream that I have brought
To such a pitch my thought
That coming time can say,
“He shadowed in a glass
What thing her body was.””
—William Butler Yeats (1865–1939)
“we are the circle of the crazy ladies
who sit in the lounge of the mental house
and smile at the smiling woman
who passes us each a bell,”
—Anne Sexton (1928–1974)