Pneumatic Tire Definition
"Pneumatic" is a Greek word for "spirit". "Pneuma" means something that is filled with air. Most tires you utilize or see nowadays are more than likely pneumatic tires. Actually, most modern commercial transportation and private motor vehicles could not work without pneumatic tires.
Definition
Webster's on-line dictionary defines pneumatic tires as tires that are made from durable rubber and can hold compressed air. Any kind of tire that requires air pressure to hold its shape is considered to be a pneumatic tire.
History
John Boyd Dunlop, the Irish surgeon has been credited to inventing the pneumatic tire. He developed the very first practical pneumatic bicycle tire in the year 1888. During 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the first to utilize pneumatic tires on a car during a race.
Identification
Pneumatic tires are made from numerous bands of plys or corded fabric. Plys are often coated with rubber which enables them to hold air pressure. Bias ply tires have the plys overlaid at a certain angle to the other layers. Radial tires have all plys laid at 90 degrees to the tire body or casing.
KInds
Tube tires are a type of tire that needs a rubber inner tube in order to hold the air pressure. Bicycle tires, motorcycle tires on spoke rims and older bias ply truck and car tires utilize inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall that creates an airtight seal with the wheel. This kind of tire does not require an inner tube.
Exceptions
Pneumatic tires can be punctured and lose air pressure that makes them unsuitable for particular applications. Tires utilized on forklifts, tires utilized in construction, tires utilized by the military are often filled with resilient foam or made with solid rubber.
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