Pneumatic Tire Definition
"Pneumatic" is a Greek term for "spirit". "Pneuma" means anything which is filled with air. Nearly all tires you see or utilize today are more than likely pneumatic tires. In fact, most private transportation and modern commercial transportation can not function without utilizing pneumatic tires.
Definition
Webster's online dictionary defines pneumatic tires as tires that are made from durable rubber and could hold compressed air. Any kind 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 John Boyd Dunlop, an Irish surgeon, who in 1888 developed the very first practical pneumatic bicycle tire. In the year 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the very first to use pneumatic tires on a car during a race.
Identification
Pneumatic tires are constructed of bands of corded or plys fabric. These plys are coated with rubber to be able hold air pressure. Bias ply tires have the plys overlaid at a particular angle to the other layers. Radial tires have all plys laid at 90 degrees to the casing or tire body.
KInds
In tube tires, there are a type of rubber inner tube to hold the air pressure. Bicycle tires, motorcycle tires on spoke rims and car tires and older bias ply truck utilize inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall which forms an airtight seal with the wheel. This type of tire does not need an inner tube.
Exceptions
The fact that pneumatic tires could lose air pressure and be punctured makes them unsuitable for specific applications. Tires tires utilized in construction, tires used by the military, utilized on forklifts are often made with solid rubber or filled with resilient foam.
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