Hebei Hankai excavator boom cylinder seal replacement

When discussing oil seals, several factors come into play. First and foremost is the material used in the seal's construction. Common materials include rubber, polyurethane, and fluorocarbon, each having its own advantages and disadvantages. For instance, rubber seals are generally cost-effective and can work well under moderate conditions, while fluorocarbon seals are exceptionally resistant to heat and chemicals, making them ideal for high-performance applications.

Oil seals, commonly known as rotary shaft seals, are devices that prevent the leakage of lubricants while keeping contaminants such as dirt and moisture out. High temperature variants are designed to operate effectively in environments where standard seals would typically fail due to thermal degradation. These seals are made from materials that can withstand elevated temperatures, such as silicone, fluoroelastomers (FKM), and polyurethane.