Lip seals are mechanical devices used to prevent the leakage of fluids or gases in various applications. They consist of a flexible lip that creates a tight seal against a rotating shaft or stationary surface. This design helps to minimize wear and tear, ensuring the longevity of machinery. Commonly found in automobiles, industrial equipment, and household appliances, lip seals are essential for maintaining efficiency and performance. They are made from materials like rubber or polymer, which provide durability and resistance to environmental factors. Proper installation and maintenance of lip seals are crucial for optimal functionality.