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The propeller shaft transmits drive power through the engine using a gear box towards the differential crown wheel pinion. It propels the vehicle at variable torque and variable rotational speeds in a very floating state regarding its rapid positional changes whilst adjusting spontaneously to alterations in its length and its 3D planar motion. The three-directional motion of the propeller shaft is seriously restricted when your vehicle runs on the torture track or on irregular x-country roads. The universal joints have U-fork couplings with universal spider arms on needle roller bearings.
Early pneumatic tyre, use is made of coated with rubber canvas when tire body, because the canvas ordinate and horizontal lines cross each other, due to the deformation of the tire when walking, lead to rub against each other, in this way, the line is easy to be ground breaking, the tires can only run 200-300 km. In 1903, Mr. J. f. palmer invented the twill textile, which led to the development of cross - layer tires, making the tyre life a big step forward. Because the tire of the skew fork will no longer cause friction because of the tread of the tyre, the cord will not be easily worn out, so the life span will be considerably longer. In 1930, Michelin made the first tyre without a tyre. The world famous meridian tire was invented in 1946. Therefore, the development of the tire has been a long journey, in this long night, I do not know how many generations have paid hard labor and excellent wisdom
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