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Komatsu Loader Differential in Maryland - Our enterprise offers a wide variety of various replacement accessories and parts for all suppliers of excavators, loaders, and bulldozers. Our company includes a wide range of specific purchasing options and will often accomodate virtually all shipping requests within Maryland. The word "pneumatic" comes from the Greek word for "spirit" that is "pneuma" and translates to something which is filled with air. Most tires you see or use these days are more than likely pneumatic tires. In fact, nearly all private vehicles and modern commercial transportation can not work without utilizing pneumatic tires. Pneumatic tires as defined by Webster's online dictionary are described as tires that are made from reinforced rubber, that hold compressed air. Any kind of tire which needs air pressure to hold its shape is considered to be a pneumatic tire. John Boyd Dunlop, the Irish surgeon has been credited to inventing the pneumatic tire. He developed the first practical pneumatic bicycle tire during eighteen eighty eight. In 1895, the Michelin brothers Édouard and André, the Michelin brothers were the very first to use pneumatic tires on a car during a race. Pneumatic tires are made from many bands of corded or plys fabric. Plys are often 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 tire body or casing. Tube tires are a kind of tire which needs a rubber inner tube in order to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and car tires and older bias ply truck utilize inner tubes. Tubeless tires have a stiff bead on the sidewall edges that forms an airtight seal with the wheel. This eliminates the need for an inner tube.