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 utilize or see these days are more than likely pneumatic tires. Actually, most private vehicles and modern commercial transportation could 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 that 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 in the year 1888 developed the very 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 made from numerous bands of corded or plys fabric. Plys are normally coated with rubber that 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.
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 utilize inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall which creates an airtight seal with the wheel. This eliminates the need for an inner tube.
Exceptions
The fact that pneumatic tires could be punctured and lose air pressure makes them unsuitable for particular applications. Tires tires used in construction, tires used by the military, used on forklifts are normally made with solid rubber or filled with resilient foam.
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