The cross-ply cord arrangement orients the cords to more directly support the bead wheel rim (like a sling: bead to cord and around below the tread back to the opposite bead, both ways, thus crossing plies of cords).
86 Motorcycle edit Main article: Motorcycle tyre There are many different types of motorcycle tires.
A disadvantage is that many run-flat tires cannot be repaired if a puncture occurs.Aged tires may appear to have similar properties to newly manufactured tires, but rubber degrades over time, and once the vehicle is traveling at high speeds (i.e.Therefore, the ratio the two monomers in the styrene-butadiene copolymer is considered key in determining the glass transition temperature of the material, which is correlated to its grip and resistance properties.The 1911 edition of the Encyclopædia Britannica states that "the spelling 'tyre' is not now accepted by the best English authorities, and is unrecognized in the US 4 while Fowler's Modern English Usage of 1926 says that "there is nothing to be said for 'tyre.Athletes then run through the tire pattern by stepping in the center of each tire.Winter tires edit Main article: Snow tires A winter tire without studs, showing tread pattern designed to compact snow in the gaps.Many of the details are modeled in Pacejka's Magic Formula.40 Components edit A tire carcass is composed of several parts: the tread, bead, sidewall, shoulder, and ply.Manufacturers to forestall the radial tire.Robot Building for Beginners (3.).Retread edit Main article: Retread Tires that are fully worn can be re-manufactured to replace the worn tread.Bias-Ply Tires in Construction".
This generates a traction force to oppose the motion of the vehicle.
Tests of airliner aircraft tires have shown that they are able to sustain pressures of maximum 800 pounds per square inch (55 bar; 5,500 kPa) before bursting.
60 Wheel alignment edit Main article: Wheel alignment When mounted on the vehicle, the wheel and tire may not be perfectly aligned to the direction of travel, and therefore may exhibit irregular wear.
Sipes are slits cut across the tire, usually perpendicular to the grooves, which allow the water from the grooves to escape to the sides in an effort to prevent hydroplaning.
Tires outside the specified limits for RFV and LFV are rejected.89 90 Scrap tires and environmental issues edit A child plays in a playground made from recycled tires.During the deformation and recovery cycle the tire exerts variable forces into the vehicle.Overinflation may increase the wear on the center contact patch, and underinflation will cause a concave tread, resulting in less center contact, though the overall contact patch will still be larger.Also, it is common for tires whose treadwear grade is of little commercial value, such as racing tires, to be assigned extremely low values - sometimes even zero.Tread wear, also known as tire wear, is caused by friction between the tire and the road surface.Minispares have a short life expectancy and a low speed rating, often index fl merck manuals professional below 60 miles per hour (97 km/h).Congress to establish and regulate transportation safety in the United States of America.Scrap tires are often re-used for things from bumper car barriers to weights to hold down tarps.Since the manufacturing process, raw materials, and equipment vary according to the tire type, it is common for tire factories to specialize in one or more tire types.Light trailer edit Domestic Trailers (including camping trailers) for use on public highways often have different tires than those seen on cars.Contents Etymology and spelling edit The word tire is a short form of attire, from the idea that a wheel with a tire is a dressed wheel.
43 Bead edit The tire bead is the part of the tire that contacts the rim on the wheel.
Knobby tires are particularly useful where the ground consists of loose particles that can be displaced by the knobs.
In the late 1990s, Hunter Engineering introduced the GSP9700 Road Force balancer, which is equipped with a load roller similar to the force variation machine used at the factory to grade tire uniformity.