Rack and pinion gears are used to convert rotation into linear motion. The flat, toothed part is the rack and the gear is the pinion. A piston coaxial to the rack provides hydraulic assistance force, and an open-centered rotary valve controls the assist level. A rack and pinion gears system is composed of two gears. The normal round gear is the pinion gear and the straight or flat gear is the rack. The rack has teeth cut into it and they mesh with the teeth of the pinion gear. JSM AUTOMECH provides a wide range of Rack and pinion gear to satisfy your special requirement. 

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Rack and pinion gears provide a less mechanical advantage than other mechanisms, but more excellent feedback and steering sensation. A rack and pinion gear give a positive motion especially compared to the friction drive of a wheel on the tarmac. In a rack and pinion railway, a central rack between the two rails engages with a pinion on the engine allowing a train to be pulled up very steep slopes.

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