Pneumatic Tire Definition
The term "pneumatic" comes from the Greek word for "spirit" which is "pneuma" and means something which is filled with air. The majority of tires you see or utilize today are more than likely pneumatic tires. Actually, the majority of private vehicles and modern commercial transportation could not work without using pneumatic tires.
Definition
Webster's online dictionary defines pneumatic tires as tires which are manufactured from reinforced rubber and can hold compressed air. Any tire which requires 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. During the year 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the first ones to use pneumatic tires on a car during a race.
Identification
Pneumatic tires are made from many bands of plys or corded fabric. Plys are normally coated with rubber which allows 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 casing or tire body.
KInds
Tube tires are a type of tire that requires 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 use inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall that 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 which makes them unsuitable for particular applications. Tires tires utilized by the military, utilized on forklifts, tires utilized in construction are usually filled with resilient foam or constructed with solid rubber.
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