Wedge angle (V with the angle between the two sides), the strength layer by the multi-layer coated cord or single-row dipped cord composition. With the width of the top with a high ratio of 1.1 to 1.2, bandwidth than the ordinary V belt reduced by about 1/3, so the lateral stiffness. With the top of the bow shape, so that when the rope core force remains arranged neatly, so the force evenly, give full play to the role of each rope. Strong layer line rope slightly higher position, with both sides were concave, and its strong layer between the adhesive layer and set a layer of directional fiber film. Due to the structural characteristics of the same speed, the transmission capacity than the ordinary V-belt can be increased by 0.5 to 1.5 times. When the transmission power is the same, the structure of the narrow V-belt is 50% less than that of the ordinary V-belt, and the service life is obviously prolonged. The ultimate speed is up to 40 ~ 50m / s and the transmission efficiency is 90% ~ 97%. In addition, the use of narrow V belt can shorten the transmission center, pulley width reduction, widely used in a variety of power transmission.
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