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Rotary shaft seals, commonly known as oil seals, are dynamic seals that prevent the leakage of fluids or liquids from machines with rotating parts such as shafts, hubs, and axles. At the same time, they prevent external agents from contaminating the system.

Materials

Common materials for sealing rings include nitrile rubber (NBR), fluoroelastomers (FKM), polyacrylate (PA), and PTFE (polytetrafluoroethylene).
PTFE offers advantages in terms of high-temperature resistance, low friction, and chemical compatibility, making it suitable for heavy-duty applications.

Applications

Sealing rings are used in various sectors, including engines, transmissions, agricultural machinery, construction equipment, machine tools, and the food industry. They are essential for the proper operation of pumps, compressors, gearboxes, and other mechanical components involving rotating parts. Choosing the correct sealing ring is crucial to ensure the efficiency, durability, and safety of machinery. Proper lubrication is necessary to reduce shaft friction and wear, thereby extending its service life.