Hebei Hankai wiper ring

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.

Specifications of the 14x24x6 Oil Seal

Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.