Pinion Gear: The smaller of two meshing gears. A pinion gear is used in a starter motor to engage the flywheel ring gear and also rides along the surface of the steering rack (a rod with grooves cut in it to mesh with the gear) See rack and pinion gearbox .
PINION GEAR
Meaning of PINION GEAR in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012