Dust proof seals are designed to prevent dust, dirt, and other particulates from entering sensitive areas of machinery and equipment. This is particularly important in sectors such as manufacturing, automotive, aerospace, and electronics, where even minute particles can lead to significant operational issues. Dust can cause wear and tear on moving parts, interfere with electrical components, and ultimately reduce the lifespan of equipment.
Hydraulic seals come in various forms, including O-rings, V-rings, U-cups, and lip seals, each designed for specific applications and conditions. The choice of seal depends on factors like temperature, pressure, and the type of fluid involved. For example, O-rings are commonly used due to their ease of installation and versatility, while V-rings and U-cups are better suited for dynamic applications where relative motion is involved.
The designation 20x35x7 refers to the dimensions of the oil seal. The numbers represent the inner diameter (20 mm), outer diameter (35 mm), and the thickness (7 mm) of the seal. The design of an oil seal is critical, as it must fit precisely to ensure a proper seal and prevent the ingress of dirt, dust, or moisture. The choice of material used for these seals often includes rubber compounds that enhance flexibility and resilience. Common materials include nitrile rubber (NBR), fluorocarbon rubber (FKM), and silicone, each chosen based on the specific application and operating conditions.