Mach.
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.
Mach.
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 Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012