Pneumatic Tire Definition
"Pneumatic" is a Greek term for "spirit". "Pneuma" means something that is filled with air. The majority of tires you see or utilize today are more than likely pneumatic tires. Actually, nearly all private transportation and modern commercial transportation can not function without pneumatic tires.
Definition
Webster's online dictionary defines pneumatic tires as tires which are manufactured from durable rubber and could hold compressed air. Any tire which needs air pressure to hold its form is considered to be a pneumatic tire.
History
The Irish surgeon John Boyd Dunlop has been credited to inventing the pneumatic tire. He developed the very first practical pneumatic bicycle tire in the year 1888. In 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 made up of bands of plys or corded fabric. These plys are coated with rubber in order to 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.
Types
In tube tires, there are a kind of rubber inner tube to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and older bias ply truck and car tires use inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall which forms an airtight seal with the wheel. This kind of tire does not need an inner tube.
Exceptions
The fact that pneumatic tires are able to be punctured and lose air pressure makes them unsuitable for specific applications. Tires utilized on forklifts, tires used in construction, tires utilized by the military are normally filled with resilient foam or constructed with solid rubber.
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