face gear: Meaning and Definition of

face' gear"

Pronunciation: [key]
— Mach. Mach.
  1. a disklike gear having teeth cut on the face more or less radially and engaging with a spur or helical pinion, the axis of which is at right angles to it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.