Pneumatic Tire Definition
"Pneumatic" is a Greek term for "spirit". "Pneuma" translates to something that is filled with air. Nearly all tires you see or utilize these days are more than likely pneumatic tires. Actually, nearly all modern commercial transportation and private transportation can not function without pneumatic tires.
Definition
Webster's on-line dictionary defines pneumatic tires as tires that are manufactured from reinforced 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 Irish surgeon John Boyd Dunlop, who in the year 1888 developed the first practical pneumatic bicycle tire. In 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 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 specific 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 kind of tire that needs a rubber inner tube 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 which forms an airtight seal with the wheel. This eliminates the need for an inner tube.
Exceptions
The fact that pneumatic tires are able to be punctured and lose air pressure makes them unsuitable for certain applications. Tires tires used by the military, used on forklifts, tires used in construction are normally made with solid rubber or filled with resilient foam.
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