The heel of a tooth on a bevel gear or pinion is the portion of the tooth surface near its outer end.
The toe of a tooth on a bevel gear or pinion is the portion of the tooth surface near its inner end.
Read more about this topic: List Of Gear Nomenclature
Famous quotes containing the word heel:
“In the dense light of wakened flesh
animal man is a prince. As from alabaster
a lucency animates him from heel to forehead.
Then his shadows are deep and not gray.”
—Denise Levertov (b. 1923)