Pneumatic Tire Definition
"Pneumatic" is a Greek term for "spirit". "Pneuma" means anything that is filled with air. The majority of tires you utilize or see these days are more than likely pneumatic tires. The truth is, the majority of private motor vehicles and modern commercial transportation could not function without utilizing pneumatic tires.
Definition
Webster's online dictionary defines pneumatic tires as tires that are manufactured from durable rubber and could hold compressed air. Any kind of 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 John Boyd Dunlop, an Irish surgeon, who during 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 many bands of plys or corded fabric. Plys are usually coated with rubber that enables 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 tire body or casing.
Types
Inside tube tires, there are a type of 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 that 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 which makes them unsuitable for specific applications. Tires tires utilized by the military, used on forklifts, tires used in construction are often constructed with solid rubber or filled with resilient foam.
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