Reasonable use of skeleton oil seals. It is important to understand these.

The skeleton oil seal is a typical representative of the oil seal. Generally speaking, the oil seal refers to the skeleton oil seal. The function of the oil seal is generally to isolate the parts of the transmission parts that need to be lubricated from the output parts, so as not to let the lubricating oil leak. The skeleton acts like a reinforcing bar inside the concrete member, which acts to strengthen and maintain the shape and tension of the oil seal. So what problems should the skeleton oil seal pay attention to when using it?

When using the skeleton oil seal reasonably, the following points should be noted:

(1) Speed ​​of the shaft For design and structural reasons, high-speed oil seals should be used for high-speed shafts, low-speed oil seals for low-speed shafts, and low-speed oil seals should not be used for high-speed shafts, and vice versa.

(2) Ambient temperature In the case of high use temperature, polypropylene ester or silicon, fluorine, silicon fluororubber should be used. And should try to reduce the oil temperature in the fuel tank. In case of low use temperature, cold resistant rubber should be used.

(3) The oil seal with normal pressure can withstand poor pressure. When the pressure is too high, the oil seal will deform. Pressure-resistant bearing rings or reinforced pressure-resistant oil seals should be used under excessive pressure conditions.

(4) Degree of eccentricity on the installation When the oil seal and the shaft are too eccentric, the sealability will be poor, especially when the shaft speed is high. If the eccentricity is too large, an oil seal of "W" shape can be used.

(5) The surface finish of the shaft directly affects the service life of the oil seal, that is, the smoothness of the shaft is high, and the service life of the oil seal is long.

(6) Note that there should be a certain amount of lubricant in the lip of the oil seal.

(7) Pay special attention to prevent dust from immersing in the oil seal.

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   Reasonable use of skeleton oil seals. It is important to understand these.

Editor in charge: Wang Zhen