The inner part of a shaft end hole of the backstop is connected with a driven shaft through an expansion bush and a double flat key;

在逆止器的轴端孔内通过胀套和双平键与从 动轴连接；

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The inner part of a shaft end hole of the backstop is connected with a driven shaft through an expansion bush and a double flat key;

在逆止器的轴端孔内通过胀套和双平键与从 动轴连接；

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