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Solutions for the trucking industry...
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{ Useful Info.
Tire Terminology...
| Calendar | A machine consisting of two or more rolls that continuously sheets a thin ply of rubber compound or coats a fabric with a rubber compound. |
| Camber | The angle that the tire is leaning measured from true vertical. The inward or outward tilt of the wheel/tire at the top. |
| Camber Thrust | The cornering force developed by a tire due to its camber. a force in the same direction as the leaning of the tire. |
| Carbon Black | Very fine, specially structured particles of carbon; used in rubber compounds as a reinforcing filler. |
| Carrying Capacity | Amount of load that a tire can carry at a given inflation pressure as established by the Tire and Rim Association. |
| Casing (Carcass) | The structure of tire cords locked around wire beads, (most often used in relation to worn tires). |
| Caster | The angle between the tire vertical and the steering pivot axis; the backward or forward tilt of the steering knuckle pivot points. |
| Center of Gravity | The center balance point of a vehicle; the single point where a car would be supported without tipping up or down. |
| Centerline | A plane dividing a tire, wheel, or vehicle into two symmetrical halves. |
| Centrifugal Force | The force that tends to throw a tire away from the center of rotation same as LATERAL FORCE. |
| Chafer | Abrasion resistant rubber coated material to help prevent the tire's beads from rim damage and chafing. |
| Change-Over | Removal of tires placed on car or truck by the manufacturer prior to significant use, and substitution of better or more suitable tires. |
| Chapman Strut | A rear suspension system which operates on the same principle as the McPherson Strut; it uses lower links or a control arm and a long spring-shock strut. |
| Chassis | The frame, suspension system, engine, and drive train of a vehicle; the assembled parts of an automobile without the body. |
| Coefficient of Friction | The force required to slide an object, divided by the weight of the object; this indicated the difficulty in sliding one surface against another. |
| Coil Springs | Suspension components of coiled spring steel that compress and respond to road pressure, permitting the up-and-down movement of a vehicle as it goes over road bumps and dips. |
| Cold Inflation | The pressure in a tire that has been driven less than 1 mile or has been standing for three hours or more. |
| Compliance Steer | A steering effect caused by the deflection or compliance of bushings, joints, and other suspension components under loads and forces. |
| Compounding | Refers to the mixture of ingredients that go into the rubber used in a tire. Different chemicals or types of compounds affect wear, traction, cut resistance or other properties of a tire. |
| Concave Molding | A process by which the center tread area of a tire is depressed in the molding stage. When inflated, the tread flattens out against the road surface more perfectly than a convex molded tire. |
| Conic - (Also Conical) | Of or shaped like a cone. |
| Conicity | Quality or state of being conical. (Cause of radial tire pull.) |
| Control Arm | A device used to connect the un-sprung position of a suspension to the sprung chassis, which allows suspension travel. |
| Cord | Fabric or steel wire strands forming plies and belts in tires. |
| Cord Angle | The degree at which the plies or belts cross the center line of any given tire. |
| Cornering Force | The force that turns a car around a corner. The opposite of lateral or centrifugal force. |
| Cross Pattern | The sequential torquing of the lug nuts in a pattern across from one another. |
| Cross Section Width | External sidewall to sidewall measurement of inflated tire, exclusive of ornamental ribs and lettering. Sometimes called section width. |
| Crown | The region between the shoulders of the tire. |
| Crowned Road | A road design with a slope or pitch from its center to the curb or shoulder in order to facilitate water drainage. |
| Curb Guard | A rubber protrusion running circumferentially around some tires just above the whitewall to prevent curb scuffing on the whitewall area of a tire. |
| Curb Weight | The total weight of a vehicle with no passengers and a full tank of gas. |
| Cure | To vulcanize; also time and temperature conditions used to vulcanize a tire. |
| Custom Wheel | An aftermarket wheel designed to improve performance and enhance appearance and comprised of one, two, or three pieces. |
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