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Rack and pinion steering may be susceptible to kickback, as the steering rack transmits forces in either direction. A steering box design, such as recirculating ball, is much less sensitive. Despite this, the other advantages of rack and pinion steering have led to its almost universal adoption, at least for light automobiles.
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
The steering pivot points [clarification needed] are joined by a rigid bar called the tie rod, which can also be part of the steering mechanism, in the form of a rack and pinion for instance. With perfect Ackermann, at any angle of steering, the centre point of all of the circles traced by all wheels will lie at a common point.
A steering linkage is the part of an automotive steering system that connects to the front wheels. [1]The steering linkage which connects the steering gearbox to the front wheels consists of a number of rods.
Variable-ratio steering is a system that uses different ratios on the rack in a rack and pinion steering system. At the center of the rack, the space between the teeth are smaller and the space becomes larger as the pinion moves down the rack.
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