Between the inner ring and outer ring of damping pulley, there is a layer of special rubber, which can reduce the amplitude of resonance and relax the impact caused by change of load.
汽车上使用的减振皮带轮，其内外圈间填充特殊橡胶，通过它可以降低皮带轮运转过程中的谐振振幅，减缓变速时的冲击。
The rubber inner layer is made of natural gum or ethylene propylene diene rubber, and the rubber outer layer is made of chloroprene rubber or ethylene propylene diene rubber.
橡胶内层的材质为天然胶或三元乙丙橡胶，外层橡胶的材质为氯丁胶或三元乙丙橡胶。
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