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Komatsu Loader Differential in San Jose - Are you currently searching for the best We enjoy easy access to many distributors throughout the entire world and are able to source your entire new and used equipment needs. The term "pneumatic" comes from the Greek word for "spirit" which is "pneuma" and translates to something that is filled with air. Nearly all tires you see or use today are more than likely pneumatic tires. Actually, nearly all private motor vehicles and modern commercial transportation could not function without pneumatic tires. Pneumatic tires as defined by Webster's on-line dictionary are described as tires which are made from durable rubber, that hold compressed air. Any type of tire which needs air pressure to hold its form is considered to be a pneumatic tire. The invention of the pneumatic tire has been credited to Irish surgeon John Boyd Dunlop, who in 1888 developed the first practical pneumatic bicycle tire. In 1895, the Michelin brothers Édouard and André, the Michelin brothers were the very first to utilize pneumatic tires on a car during a race. Pneumatic tires are constructed 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 specific angle to the other layers. Radial tires have all plys laid at 90 degrees to the tire body or casing. Inside 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 utilize inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall which forms an airtight seal with the wheel. This type of tire does not need an inner tube.