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Steering Arm

An arm that is attached to the steering knuckle that turns the knuckle and wheel for steering.

Steering Axis

The vertical line through the centerline of the upper and lower pivot- or ball-joints on a steered wheel.

Steering Axis Inclination

(SAI) The angle of a line through the center of the upper strut mount and lower ball joint in relation to the true vertical centerline of the tire, viewed from the front of the vehicle.

Steering Box

A general term used for the steering mechanism at the end of the steering column.

Steering Brake

A braking system that provides separate control for the left and right rear wheels as an aid in steering around curves and/or correcting a pull to either side in some off-road vehicles.

Steering Column

Tubing through which the steering shaft mounts and rotates, providing a surface for the mounting of the hazard switch, turn signal switch, ignitions switch, and transmission selector or shifter.

Steering Column Shift

An arrangement where the transmission shifter is mounted on the steering column.

Steering Damper

A device that reduces or eliminates road shock and vibration.

Steering Drift

The tendency of the steering to gradually drift to either side when the vehicle is driven straight ahead on a smooth, level road surface, generally caused by improper caster or camber or an under-inflated tire. Also known as steering pull. .

Steering Gear

The assembly that converts motion from the steering column to the pitman arm.

Steering Geometry

The relationship of the steering linkage and the wheels to the road affected by caster, camber, scrub radius, steering offset, toe in , and toe out.

Steering Kickback

The shock felt in the steering wheel as the front wheels encounter obstructions in the road.

Steering Knuckle

The part around which each front wheel pivots as it is steered.

Steering Linkage

The assembly of tie rods, idler arms, and links that transfer steering motion from the steering gear box to the steering spindles with the rods, pivoting joints, and supporting parts that transfer steering motion from the pitman arm to both knuckle arms.

Steering Linkage Damper

A shock-absorber type device that connects the steering linkage to the framework of the vehicle and absorbs some of the road shock and dampens most of the vibrations.

Steering Lock

A locking device on the steering column that prevents steering wheel rotation and/or selector lever motion unless unlocked using an ignition key.

Steering Offset

A term used for scrub radius.

Steering Pull

The tendency of the steering to gradually pull to the right or left when the vehicle is driven straight ahead on a smooth, level road surface, generally caused by improper caster or camber or an under inflated tire. Also known as steering drift.

Steering Ratio

1. The ratio of the worm to the sector. 2. the ratio of the rack to the pinion.

Steering Sector

A term used for sector gear.