橡胶O形密封圈除了起密封作用以外,还可起另一个作用。我厂一台控温转鼓轴头采用骨架油封进行密封,由于转鼓内的液体具有较强的腐蚀作用,致使骨架油封的自紧弹簧经常被腐蚀,不到一个月即损坏。产生漏水,严重地影响了轴承的使用寿命。换用U形密封圈由于自紧效果不好,使用寿命也不长。最后我们用O形密封圈代替骨架油封中的自 Rubber O-ring in addition to sealing from the role, but also play another role. I plant a temperature control drum shaft head seal with a skeleton oil seal, as the drum of the liquid has a strong corrosive effect, resulting in skeleton oil seal self-tightening spring is often eroded, less than a month that is damaged. Leakage occurred, seriously affecting the bearing life. U-ring for self-tightening effect is not good, the service life is not long. Finally, we use O-ring instead of self-sealing oil seal