As a Leading gears suppliers, We manufacturing various rack and pinion gears, these gears are very efficient, these are used to convert rotation into linear motion.Flat, toothed part is the rack and gear in the pinion, By varying the sizes of either the rack or the pinion, the rotation linear travel ratio can be varied according to the requirement criteria. A piston coaxial of the rack provides hyraulic help force to open centered rotary valve controls assistance.