The sprocket gear and the rotary plate are respectively fixed on both ends of the connecting sleeve.
链轮、连接套和旋转板的中心孔依次安装于轴上。
An assembly step matching the shaft shoulder of the mainshaft is positioned on the shaft sleeve and a fixed gap forms between the shaft sleeve step and the water-tight plate.
轴套上设有与主轴轴肩配置的装配台阶，轴套台阶与水密封板之间形成有固定的间隙。
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