轴承前面的带刺的是个什么结构?
密封么data:image/png;base64,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没发上图 不会是弹簧吧?
韩伯乾 发表于 2018-5-24 15:02
不会是弹簧吧?
绝对不是
迷宫密封圈 wanghy 发表于 2018-5-24 15:06
迷宫密封圈
那是刚性的,还是柔性的
这不是机械原理毕设的吗 刚性的,机械设计手册里有,搜索“迷宫密封”就啥都清楚了。是一种间隙密封结构。 甩油环 旋转密封。
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