In earlier cars, fans and alternators were driven with […]
In earlier cars, fans and alternators were driven with round tires or flat belts made of leather or rubber. With the development of the automobile industry, automobile belts have gradually improved. A wedge-shaped rubber belt - V-belt that can be more effectively fitted with the V-shaped groove of the transmission wheel is invented. Early V-belt for the package-style, and later invented a longer life, more flexible side of the trimming.
PK belt is bound by material. First, the tension line is impregnated with the binder and the dissolved elastomer. And then with a special gum material, softened and flowed during the vulcanization process, filling the tension lines, the gap between the fabric and the rubber composition. (Vulcanization is the addition of gelatin and heat treatment after the strengthening process) through the appropriate bonding, you can get by the composition of many units to form a solid solid finished products.
The timing belt includes a very strong tension line made of glass fiber. The bottom of the cable by the precision mold teeth, the surface covered with rubber impregnated fiber, which provides additional friction resistance. The timing belt must be precise so that the belt can be properly engaged with the crankshaft and camshaft. Although the timetable is very strong, but they are very delicate and vulnerable. At the same time the timing belt of the glass fiber rope than the traditional belt in the polyester wire has a greater tensile strength, but not as flexible polyester rope. If the timing belt is bent over in any direction, the glass fibers are easily broken.
Compared to the traditional V-belt, PK Belt with a compact structure in the engine to run better. The PK belt has a structure that makes it more flexible when it comes to a smaller drive pulley and is more flexible when it passes around the back of the drive pulley. Finally, this feature allows the belt to "serpentine" drive. This transmission requires transmission of power to both sides of the belt. A snake-like belt can replace a number of V-belt to occupy much less space.