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Komatsu Loader Differential in Austin - Our business offers a huge selection of different replacement parts and accessories for many suppliers of excavators, loaders, and bulldozers. Our dependable Austin staff of parts experts are standing by to help you receive the components you require. The term "pneumatic" comes from the Greek word for "spirit" that is "pneuma" and means something which is filled with air. The majority of tires you use or see these days are more than likely pneumatic tires. Actually, nearly all private motor vehicles and modern commercial transportation could not work without pneumatic tires. Pneumatic tires as defined by Webster's online dictionary are described as tires which are made from durable rubber, that hold compressed air. Any tire which needs air pressure to hold its form is considered to be a pneumatic tire. The Irish surgeon John Boyd Dunlop has been credited to inventing the pneumatic tire. He developed the first practical pneumatic bicycle tire in the year 1888. In the year 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 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. 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 older bias ply truck and car tires use inner tubes. Tubeless tires have a stiff bead on the edges of the sidewall that forms an airtight seal with the wheel. This eliminates the need for an inner tube.