Pneumatic Tire Definition
"Pneumatic" is a Greek term for "spirit". "Pneuma" translates to anything which is filled with air. Nearly all tires you utilize or see nowadays are more than likely pneumatic tires. In fact, nearly all private motor vehicles and modern commercial transportation could not function without utilizing pneumatic tires.
Definition
Webster's on-line dictionary defines pneumatic tires as tires which are made from durable rubber and can hold compressed air. Any type of tire which needs air pressure to hold its form is considered to be a pneumatic tire.
History
The invention of the pneumatic tire has been credited to Irish surgeon John Boyd Dunlop, who during 1888 developed the first practical pneumatic bicycle tire. In the year 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the very first ones to utilize pneumatic tires on a car during a race.
Identification
Pneumatic tires are made from numerous bands of corded or plys fabric. Plys are often coated with rubber that 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 requires a rubber inner tube in order to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and older bias ply truck and car tires utilize inner tubes. Tubeless tires have a stiff bead on the sidewall edges which forms an airtight seal with the wheel. This eliminates the need for an inner tube.
Exceptions
Pneumatic tires could be punctured and lose air pressure that makes them unsuitable for certain applications. Tires tires used by the military, used on forklifts, tires utilized in construction are normally filled with resilient foam or made with solid rubber.
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