The Freudenberg-NOK NB7018 oil seal features an outer diameter of 28mm and a width of 4mm, made from durable NBR (Buna) material with a hardness rating of 70 Shore A. This oil seal is engineered for high-performance sealing in various industrial applications, providing excellent resistance to oils and fluids. Its design ensures a tight seal, preventing leakage and contamination, which is crucial for maintaining the efficiency and longevity of machinery. The NB7018 complies with industry standards, making it a reliable choice for hydraulic and pneumatic systems.