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Komatsu Loader Differential in Massachusetts - Our company offers overnight delivery on all parts and attachments for Doosan, Hyundai, Samsung, Kobelco, and several other recognized brands. Our enterprise is equipped with a number of distinctive purchasing solutions and will accomodate almost all delivery needs within Massachusetts. "Pneumatic" is a Greek term for "spirit". "Pneuma" means something that is filled with air. Most tires you utilize or see today are more than likely pneumatic tires. The fact is, most modern commercial transportation and private motor vehicles can not work without pneumatic tires. Webster's on-line dictionary defines pneumatic tires as tires which are made from reinforced rubber and could 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 the year 1888 developed the very first practical pneumatic bicycle tire. During the year 1895, the Michelin brothers Édouard and André, the Michelin brothers were the very first ones to use 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 kind of rubber inner tube to be able to hold the air pressure. Motorcycle tires on spoke rims, bicycle tires and older bias ply truck and car tires 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 need an inner tube.