Pneumatic Tire Definition
The word "pneumatic" comes from the Greek word for "spirit" that is "pneuma" and means something which is filled with air. Nearly all tires you see or utilize nowadays are more than likely pneumatic tires. Actually, nearly all modern commercial transportation and private motor vehicles could not work without using pneumatic tires.
Definition
Webster's on-line dictionary defines pneumatic tires as tires that are made from reinforced rubber and could hold compressed air. Any type of 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 during the year 1888 developed the very first practical pneumatic bicycle tire. 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 to be able 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 tire body or casing.
KInds
Tube tires are a type of tire that needs a rubber inner tube to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and car tires and older bias ply truck use inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall that forms an airtight seal with the wheel. This kind of tire does not need an inner tube.
Exceptions
The fact that pneumatic tires can lose air pressure and be punctured makes them unsuitable for particular applications. Tires tires used in construction, tires utilized by the military, used on forklifts are often constructed with solid rubber or filled with resilient foam.
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