Ackermann Steering

A double-pivoting steering system where the outer ends of the steering arms are bent slightly inward so that when the vehicle is making a turn, the inside wheel will turn more sharply than the outer wheel. This is done to compensate for the greater distance the outside wheel must travel.

As a rule of thumb the links connecting the track rod ends to the wheel steering pivots should be angled inwards such that with the wheels straight ahead the track rod ends lie on a line joining the wheel steering pivot and the centre of a line drawn between the rear wheel centres (as shown in the above diagrams).

See also: Ackermann Angle, Ackermann Curve, Steering.

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Subjects: Automotive