What is the relationship between the oil seal and the dust ring seal:
1. Oil seal, that is, the sealing of lubricating oil. It is often used in bearings of various machinery, especially in rolling bearing parts. Its function is to isolate the oil chamber from the outside world, seal the oil inside and seal the dust outside.
2. The oil seal can be used as a dust-proof seal. However, when dust is serious or in order to protect other seals, special dust seals are often used. Dust-proof sealing materials, hydraulic machinery multi-purpose rubber, pneumatic machinery multi-purpose felt, aircraft and cold zone work of the cylinder in order to deal with the outside of the piston rod with metal, chemical departments to prevent the sticking on the piston rod also use metal. Dust seal is very important to protect critical hydraulic equipment. Infiltration dust, not only wear seals, but also greatly wear the guide sleeve and piston rod. In addition, impurities enter the hydraulic medium, which will also affect the operating valve and pump.