Pneumatic Tire Definition
The term "pneumatic" comes from the Greek word for "spirit" which is "pneuma" and translates to something which is filled with air. Nearly all tires you utilize or see nowadays are more than likely pneumatic tires. In fact, nearly all private vehicles and modern commercial transportation can not work without pneumatic tires.
Definition
Pneumatic tires as defined by Webster's on-line dictionary are described as tires that are made from durable rubber, which hold compressed air. Any tire that needs air pressure to hold its form is considered to be a pneumatic tire.
History
The Irish surgeon John Boyd Dunlop has been credited to inventing the pneumatic tire. He developed the very first practical pneumatic bicycle tire in 1888. During 1895, the Michelin brothers Edouard and Andre, the Michelin brothers were the very first ones to use 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 which 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 type of rubber inner tube to be able to hold the air pressure. Bicycle tires, motorcycle tires on spoke rims and car tires and older bias ply truck use inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall which creates an airtight seal with the wheel. This kind of tire does not require an inner tube.
Exceptions
Pneumatic tires could lose air pressure when punctured which makes them unsuitable for particular applications. Tires tires utilized in construction, tires utilized by the military, utilized on forklifts are normally made with solid rubber or filled with resilient foam.
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