Steering reversibility: A steering gear is said to be reversible if by turning of the stub axles, it is possible to turn the steering wheel.

Steering ratio: It is the ratio of the angle turned by the steering wheel to the corresponding turning angle of the stub axle.

Steering gear: The device to convert the turning motion of the steering wheel into the to-and-fro motion of the link rod of the steering linkage.…

Steering axis inclination: Inclination of the ball joint axis from the vertical.

Steering axis: The line through the centres of the ball joints in a front suspension.

Steering arm (Track rod arm): The arm attached to the steering knuckle on one end and tie rod end at the other end.

Station wagon: A car wood-panelled in the olden days, but now only with a resembling look over the steel structure. Rear door and seats for…

Squat: Nose-up pitching motion of a vehicle while accelerating. It is caused due to weight transfer from front to rear.

Sports car: An automobile designed for performance driving. Usually, these have rear wheel drive, two seats, two doors and are designed for precise performance, handling…

Smart materials: The materials which can change their shape, strength and/or stiffness when heat, stress, magnetic field or electrical voltage are applied.

Slip angle: The angle between the direction a tyre is pointed and the direction in which it is moving. Some slip angle is required to…

Slack adjuster: It acts as a lever during braking in an air pressure system. Besides, it is also used to adjust the clearance between the…

Sipe: Narrow cut in the tread of a tyre, named after its inventor John sipe.

Sub-frame: Any auxiliary framework attached to the main body or chassis of a vehicle. In unibody cars, this may be used to support the engine,…

Shock absorber: This name is a misnomer. The correct technical name is damper. It absorbs the energy of shock converted into vertical vibrations of the…