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Precautions before and using fault inspection precautions for oil seal installation

Precautions before and using faults before the installation of oil seal:

1. Precautions for installation and use

Oil seals are precision components, and improper assembly and storage will affect the performance. The storage oil seal should prevent dust, rust, and deformation. The oil seal cannot be directly illuminated by the sun, let alone squeezed. The oil seal installed on the shaft should prevent the shaft and oil seal stroke rust. When installing and disassembling oil seal, pay attention to the following matters:

When the oil seal is installed, apply oil or grease. And the shaft end and shaft shoulder are rounded.

When installing the oil seal, the end of the lip must be facing the sealing oil on the side.

When the oil seal is entered into the seat, it should be pushed in with a special tool to prevent the position from sinking.

Various measures should be taken to prevent lip margin by threads, bond slots, flowers, etc. through the oil sealing lip margin, and assemble it with special tools.

2. Oil seal leakage control control

Although the oil seal is simple and easy to use, improper use will reduce the sealing performance.

According to the regulations, each of the new varieties of oil sealing must be used as a shaft speed of 10m/s (with spring) or 6m/s (springs without spring) 240H continuous regular interruption tests. That is, it is stopped for 4h after 20 hours, and this repeated 10 tests are repeated. In order to observe the oil sealing performance during the test.

The leakage control of the oil seal has clearly stipulated in developed countries such as the United States and Britain. For example, the US MIL-S-45005A regulations are 0.5ml/24h, and they do not leak when they are shut down. 46h, the leakage of each oil seal does not exceed 1g/24h.

There are many factors that affect the performance of oil sealing and sealing. In order to reduce leakage, the following points should be paid attention to:

Oil sealing materials are consistent with the temperature conditions: The materials for making oil seal are chores, propyleate rubber, silicon rubber, fluorine rubber, and oil sealing temperature in the temperature resistance range of the material.