Oil Seals Manufacturers, Suppliers & Exporters In India. Oil seals, also known as rotary shaft seals or lip seals, are components used to prevent the leakage of oil or other fluids in rotary shaft applications. These seals create a barrier between a rotating shaft and its housing, ensuring that lubricating oil stays inside the system and contaminants are kept out. Oil seals typically have a flexible lip that makes contact with the rotating shaft. The lip provides a dynamic seal, allowing the shaft to rotate while maintaining a barrier against oil leakage. Oil seals are used in a wide range of applications, including automotive engines, industrial machinery, gearboxes, pumps, and various rotary shaft systems.