Internal gear
Root Circles for internal & external gears
The root circle coincides with the bottoms of the tooth spaces.
Read more about this topic: List Of Gear Nomenclature
Famous quotes containing the words root and/or circle:
“The root of the problem is not so much that our people have lost confidence in government, but that government has demonstrated time and again its lack of confidence in the people.”
—Jimmy Carter (James Earl Carter, Jr.)
“They will mark the stone-battlements
And the circle of them
With a bright stain.
They will cast out the dead
A sight for Priam’s queen to lament
And her frightened daughters.”
—Hilda Doolittle (1886–1961)