Pneumatic Tire Definition
The term "pneumatic" comes from the Greek word for "spirit" that is "pneuma" and translates to something which is filled with air. Nearly all tires you see or utilize these days are more than likely pneumatic tires. Actually, most modern commercial transportation and private transportation can not function without utilizing pneumatic tires.
Definition
Pneumatic tires as defined by Webster's on-line dictionary are described as tires which are constructed from durable rubber, holding compressed air. Any tire which requires air pressure to hold its shape is considered to be a pneumatic tire.
History
The invention of the pneumatic tire has been credited to Irish surgeon John Boyd Dunlop, who in 1888 developed the first practical pneumatic bicycle tire. During the year 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the very first to utilize 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 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 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 car tires and older bias ply truck utilize inner tubes. Tubeless tires have a stiff bead on the sidewall edges which creates 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 particular applications. Tires tires used by the military, utilized on forklifts, tires utilized in construction are often filled with resilient foam or constructed with solid rubber.
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