What is oil seal and its introduction

2025-07-09

Oil seal, also known as sealing ring or shaft seal, is a sealing element used on mechanical equipment. Its main function is to prevent the leakage of liquid or lubricating oil between the rotating shaft and fixed components, while also blocking external impurities such as dust and particles from entering the interior of mechanical equipment. Oil seals are usually made of elastic materials, such as rubber, polyurethane, etc., with a circular shape and elastic lip edges inside. It is tightly attached to the rotating shaft, forming a closed environment, effectively reducing the leakage of liquid or lubricating oil and internal pollution of mechanical equipment.

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