ACKERMANN STEERING: Describes a type of 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, compensating for the increased distance the outside wheel must travel.
BALL JOINT: Describes a flexible joint used for steering linkage setups, steering knuckle pivot supports, among other applications. The flexibility of the ball joint compensates for the changes in the wheel and steering when turning or hitting a bump on the road.
BALL JOINT ROCKER ARM: Describes a rocker arm which, instead of being mounted on a shaft, is mounted upon a ball-shaped device on the end of a stud.
BALL JOINT SEPARATOR: Describes a tool for forcing out ball or tapered joints.
BALL JOINT STEERING KNUCKLE: Describes a steering knuckle that pivots on ball joints instead of on a kingpin.
BALL SOCKET: Describes a recessed spherical well for receiving the ball in a ball joint.
CENTRE STEERING LINKAGE: Describes a steering system using two tie rods connected to the steering arms to a central idler arm.
CROWN WHEEL AND PINION: Describes a pair of gears in the vehicle's final drive, always found in the back axle of a rear-wheel-drive layout where the pinion is on the end of the propeller shaft.
DOUBLE-PIVOT STEERING: Describes a system where the steering wheels are pivot on kingpins, the usual arrangement on motor vehicles.
DROP ARM: Describes a short lever arm splined to the steering gear cross shaft that transmits the steering force from the cross shaft to the steering linkage system.
FOUR-WHEEL STEERING: Describes a type of vehicle where the rear wheels also turn with the front wheels to provide a sharper and more accurate turn.
HARDY-SPICER UNIVERSAL JOINT: Describes a type of universal joint made of sheet steel commonly used with prop shafts.
IDLER ARM: Describes one of the connecting levers in a parallel relay-type steering linkage. The steering gearbox is attached to a pitman arm that converts rotary motion to lateral motion.
LINKAGE POWER STEERING: Describes a power-assisted steering system in which a conventional manual system is hydraulically assisted by applying power directly to a steering linkage.
LEFT-HAND DRIVE (LHD): Describes a steering system where the steering wheel is located on the left-hand side of the vehicle designed for driving on the right side of the road.
MANUAL STEERING: Describes a steering system that has not been fitted with a power booster making the acts of parking and manoeuvring a challenging prospect.
POWER-ASSISTED STEERING (PAS): Describes a vehicle steering system in which an engine-powered hydraulic pump makes steering much lighter.
SELF-CANTERING: Describes the forces in a steering system that straightens the front wheels in a vehicle when the driver's grip on the steering wheel is released after cornering.
NEGATIVE OFFSET STEERING: Describes a steering system indicating the wheels' placement that provides the benefit of helping a vehicle stop in a straight line when the brakes are out of alignment.
RACK AND PINION STEERING: Describes a type of steering system where the pinion gear sits on the end of the steering shaft. When the steering wheel is turned, the pinion turns and moves the rack to the left or right.
RECIRCULATING-BALL-AND-NUT STEERING: Describes the most common form of steering equipment that uses a series of ball bearings that feed through and around and back through the grooves in the worm gear and nut on the steering shaft.
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