火车轴承

2021-06-04 18:18:33 admin

制动鼓是鼓式制动器的摩擦偶件，除应具有作为构件所需要的强度和刚度外，还应有尽可能高而稳定的摩擦系数，以及适当的耐磨性、耐热性、散热性和热容量等

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火车轴承

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