Pneumatic Tire Definition
The term "pneumatic" comes from the Greek word for "spirit" which is "pneuma" and means anything which is filled with air. The majority of tires you see or utilize these days are more than likely pneumatic tires. The fact is, the majority of private transportation and modern commercial transportation could not function without pneumatic tires.
Definition
Webster's on line dictionary defines pneumatic tires as tires that are manufactured from durable rubber and can hold compressed air. Any kind of tire that 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 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 use pneumatic tires on a car during a race.
Identification
Pneumatic tires are made up 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
Inside tube tires, there are a kind of rubber inner tube to be able 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 sidewall edges which creates an airtight seal with the wheel. This type of tire does not need an inner tube.
Exceptions
Pneumatic tires can be punctured and lose air pressure that makes them unsuitable for certain applications. Tires used on forklifts, tires used in construction, tires used by the military are usually constructed with solid rubber or filled with resilient foam.
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