Our 172231SC Oil Seal offers exceptional sealing performance, ensuring protection and longevity for your machinery's moving parts. Made with high-quality materials, it effectively prevents oil leakage, reducing the risk of damage and expensive repairs. Trust the industry's leading experts for reliable and efficient sealing solutions. Rotary Shaft Seals keep fluid from leaking around a rotating shaft. Most are used to seal oil-based lubricants inside an axle, engine, winch, or gearbox. Grease Seals are used to seal more viscous lubricants in rotary shaft applications.