rack and pinion(n = noun.artifact) - a wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa);
is a kind of cogwheel, gear, gear wheel, geared wheel

bicycle rack, bomb rack, coat rack, dish rack, dress rack, lantern pinion, luggage rack, magazine rack, music rack, pinion, pinion and crown wheel, pinion and ring gear, pipe rack, plate rack, rack, rack of lamb, rack railway, rack rent, rack up, roof rack, ski rack, spice rack, tie rack, towel rack