|
Outline Of Tires
The following outline is provided as an overview of and topical guide to tires: Tire (North American) or tyre (British) – ring-shaped covering that fits around a wheel rim to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground. Tire Industry History Firestone and Ford tire controversy Charles Goodyear Medal Types By construction *Tubeless tire *Radial tire * Low rolling resistance tire *Run-flat tire :*Michelin PAX System *Airless tire :*Energy return wheel :*Tweel By tread *Rain tyre *Snow tire * All-terrain tire :*Bar grip :*Knobby tire :* Large tire :* Mud-terrain tire :*Paddle tire By material * Orange oil tires By appearance *Whitewall tire Vehicle specific *Aircraft tire :*Tundra tire *Bicycle tire :*Tubular tire *Lego tire * Motorcycle tire * Tractor tire Use specific *Racing slick :*Formula One tires *Spare tire :*Continental tire Compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubeless Tire
Tubeless tires ( also spelled as tubeless tyres in Commonwealth English) are pneumatic tires that do not require a separate inner tube. Unlike pneumatic tires which use a separate inner tube, tubeless tires have continuous ribs molded integrally into the bead of the tire so that they are forced by the pressure of the air inside the tire to seal with the flanges of the metal rim of the wheel. History Many patents had been filed covering tubeless tires. ''Killen Tire'' applied for a patent in 1928 and was granted in the UK in 1930. The Wingfoot Corporation, a subsidiary of Goodyear Tire were granted a patent in South Africa in 1944. Due to technical problems, most of these designs saw only limited production or were abandoned. Frank Herzegh working for BF Goodrich applied for a patent in 1946 and eventually received in 1952 in the United States. By 1955 tubeless tires became standard equipment on new cars. BF Goodrich had to defend their patent in court several times, due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Off-roading
Off-roading is the activity of driving or riding in a vehicle on unpaved surfaces such as sand, gravel, riverbeds, mud, snow, rocks, and other natural terrain. Types of off-roading range in intensity, from leisure drives with unmodified vehicles, to competitions with customised vehicles and professional drivers. Off-roaders have been met with criticism for the environmental damage caused by their vehicles. There have also been extensive debates over the role of government in regulating the sport, including a Supreme Court case brought against the Bureau of Land Management in the United States. Off-road vehicle Travelling over difficult terrain requires vehicles capable of off-road driving such as ATVs. These vehicles have features designed specifically for use in off-road conditions such as extended ground clearance, off-road tires and a strengthened drive-train. Some manufacturers offer vehicles specifically designed for off-road use. Recreational off-roading Some e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knobby Tire
Off-road tires (Off-road tyre) are a category of vehicle tires that use deep tread to provide more traction on unpaved surfaces such as loose dirt, mud, sand, or gravel. Compared to ice or snow tires, they lack studs but contain deeper and wider grooves meant to help the tread sink into mud or gravel surfaces. Design Off-road tires are typically radials with thick, deep tread. On dirt surfaces, the exposed edges of the tread dig into soft ground to give more traction than rolling friction alone, analogous to the traction provided by cleated shoes. These off-road tires provide their maximum grip on loose surfaces, but on paved surfaces the smaller contact patch affords less traction as compared to street tires. Tires with less aggressive knobs (smaller knobs and the shape of the tread cross-section closer to that of street tires) can provide a compromise, giving less grip off-road, but a grip closer to that of street tires on paved surfaces. Such tires are useful for enduro and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar Grip
Bar grip tyres, or 'NDT' (Non-Directional Tire) in US military parlance, are an early tyre tread pattern developed for off-road use. Bar grips are characterised by a solid rubber circumferential centre strip, with large solid cleat alternately to either side. These span the full width of the tread. It is characteristic of this pattern that they do not have any tread pattern or sipes cut into the rubber to clear water. Bar grip tyres were developed in the 1930s and were the standard military pattern throughout World War II, for vehicles from Jeeps to heavy trucks and armoured cars. They fell from favour in the 1970s and largely disappeared by the 1990s, having been replaced by newer patterns with better all-around performance. Development Early road patterns Deliberate shaping of moulded tyre tread design, rather than merely concentrating on a rubber surface that didn't fail rapidly, began at the start of the 1920s. There was little theoretical background to this though unt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
All-terrain Tire
Off-road tires (Off-road tyre) are a category of vehicle tires that use deep tread to provide more traction on unpaved surfaces such as loose dirt, mud, sand, or gravel. Compared to ice or snow tires, they lack studs but contain deeper and wider grooves meant to help the tread sink into mud or gravel surfaces. Design Off-road tires are typically radials with thick, deep tread. On dirt surfaces, the exposed edges of the tread dig into soft ground to give more traction than rolling friction alone, analogous to the traction provided by cleated shoes. These off-road tires provide their maximum grip on loose surfaces, but on paved surfaces the smaller contact patch affords less traction as compared to street tires. Tires with less aggressive knobs (smaller knobs and the shape of the tread cross-section closer to that of street tires) can provide a compromise, giving less grip off-road, but a grip closer to that of street tires on paved surfaces. Such tires are useful for enduro and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Tire
Snow tires, also known as winter tires, are tires designed for use on snow and ice. Snow tires have a tread design with larger gaps than those on conventional tires, increasing traction on snow and ice. Such tires that have passed a specific winter traction performance test are entitled to display a 3PMSF (Three-Peak Mountain Snow Flake) symbol on their sidewalls. Tires designed for winter conditions are optimized to drive at temperatures below . Some snow tires have metal or ceramic studs that protrude from the tire to increase traction on hard-packed snow or ice. Studs abrade dry pavement, causing dust and creating wear in the wheel path. Regulations that require the use of snow tires or permit the use of studs vary by country in Asia and Europe, and by state or province in North America. All-season tires have tread gaps that are smaller than snow tires and larger than conventional tires. They are quieter than winter tires on clear roads, but less capable on snow or ice. Roadw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rain Tyre
Rain tires or wet tires ("tyres" in British English, commonly shortened to wets) are special tyres used in motorsport in wet weather as opposed to a slick tyre used in dry conditions. They are very similar in many ways to the tyres found on normal road cars. Rain tyres are not used in NASCAR, ARCA and INDYCAR sanctioned races held on oval tracks as these races are invariably halted when the track is wet due to safety concerns regarding the large amounts of spray involved reducing visibility, as well as a lack of traction in banked corners at high speeds. Structure Rain tyres have a specially designed structure making them better adapted for their application than any other tyres. However, not all rain tyres obey the same design principles. Certain factors need to be taken into account when designing a good rain tyre, such as the: *Speed of the car *Weight of the car *Power of the car *Lifespan of the tyre Grooves Rain tyres are cut or moulded with patterned grooves or tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tweel
The Tweel (a portmanteau of ''tire'' and ''wheel'') is an airless tire design developed by the France, French tire company Michelin. Its significant advantage over pneumatic tires is that the Tweel does not use a bladder full of compressed air, and therefore cannot burst, leak pressure, or become flat. Instead, the Tweel's hub is connected to the rim via flexible polyurethane spokes which fulfil the shock-absorbing role provided by the compressed air in a traditional tire. Design The Tweel consists of a band of conventional tire rubber with molded tread, a shear beam just below the tread that creates a compliant contact patch, a series of energy-absorbing polyurethane spokes, and an integral inner hub structure. Both the shear beam and the polyurethane spokes can be designed to provide a calibrated directional stiffness in order to control both how the Tweel handles and how it handles loads. The inner hub structure may be either rigid or compliant, depending on the application ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Return Wheel
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airless Tire
Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. They can be used on small vehicles such as riding lawn mowers and motorized golf carts. They also are used on heavy equipment required to operate on sites where risk of tire punctures is high. Tires composed of closed-cell polyurethane foam are also made for bicycles and wheelchairs. Advantages & disadvantages The main advantages of airless tires is that they do not go flat and need to be replaced less frequently. Heavy equipment outfitted with airless tires will be able to carry more weight and engage in more rugged activities. Airless tires generally have higher rolling resistance and provide somewhat less suspension than similarly shaped and sized pneumatic tires. Other problems for airless heavy equipment tires include dissipating the heat buildup that occurs when they are driven. Airless tires are often filled with compressed polymers (plastic) rather than air, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelin PAX System
The Michelin PAX is an automobile run-flat tire system that utilizes a special type of rim and tire to allow temporary use of a wheel if its tire is punctured. The core of Michelin's PAX system is the semi-rigid ring installed onto the rim using special equipment. It provides support to the tire and its sidewall to allow emergency operation at limited speed until such time as the tire can be replaced. Cars that use the system include supercars like the Bugatti Veyron EB 16.4, luxury cars like the Rolls-Royce Phantom, and more common vehicles like the Honda Odyssey and Nissan Quest. Prior technology Prior to the late 1990s introduction of the Michelin PAX System run-flat technology, both Michelin and Goodyear had introduced a "zero-pressure" run-flat technology, meaning that a pneumatic (air pressure-supported) tire could support itself with no air pressure. The new zero-pressure tire was a modified standard tire, constructed with a sidewall that was much stiffer and heavier, so as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
