The durometer of an oil seal is typically dependent on the material it is made with. Common oil seal materials along with their durometers are as follows:
Another benefit of PTFE oil seals is their excellent chemical resistance. They can withstand exposure to a wide range of chemicals, including acids, bases, and solvents, without deteriorating or losing their sealing propertiesSome aspects to consider when selecting this component are:
An oil seal has two tasks: Keeping the lubricant in and keeping dirt and contaminants out of rotating components. This separation must be accomplished between surfaces in relative motion, usually a shaft or bearing inner ring and a housing. With correct installation, oil seals can also prevent seal leakage and maintain the lubricity of a bearing to ensure that the rotary shaft and its bearings remain fully functional.
1An oil seal is designed to perform three major functions: to prevent lubricants from leaking outside the seal even under high pressure, to act as a barrier to retain the lubricating oil, and to prevent dirt and other contaminants from entering the unit.