骨架油封尘封机械密封标准件DKI聚氨酯密封件
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Name:骨架油封尘封机械密封标准件DKI聚氨酯密封件
Commodity number :NO36855

骨架油封结构有三部分组成:油封体、加强骨架和自紧螺旋弹簧。密封体按照不同部位又分为底部、腰部、刃口和密封唇等。通常,再自由状态下的骨架油封,其内径比外径小,即具有一定的“过盈量”。


因此,当油封装入油封座和轴上之后,油封刃口的压力和自紧螺旋弹簧的收缩力对轴产生一定的径向紧力,经过一段时间运行后,该压力会迅速减小乃至消失。因此,加上弹簧可以随时补偿油封自紧力。


骨架油封的作用一般就是将传动部件中需要润滑的部件与出力部件隔离,不至于让润滑油渗漏,通常用于旋转轴,是一种旋转轴唇密封。

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