Timken 55524 Single Lip Radial Shaft Oil Seal

The Timken 55524 National Oil Seal is a single-lip radial shaft oil seal designed to retain lubricants while preventing dirt, moisture, and other contaminants from entering rotating shaft systems, making it well-suited for oil-lubricated equipment operating at moderate speeds. This seal features a leather sealing lip paired with a solid steel case, delivering dependable lubrication retention and contaminant exclusion in industrial gearboxes, agricultural equipment, construction machinery, pumps, and heavy-duty power transmission systems. Key specifications include MPN 55524, Series 50000, Type 5L single lip construction, lip material leather, case material steel, and inch-based measurements: shaft diameter 2.000 in (50.800 mm), housing bore 4.003 in (101.676 mm), outside diameter 4.008 in (101.803 mm), and overall width 0.468 in (11.887 mm). The combination of a solid metal case and leather lip helps the seal perform reliably in oil-lubricated systems that operate at moderate speeds, ensuring effective lubricant retention and contaminant exclusion across industrial gearboxes, agricultural equipment, construction machinery, pumps, and heavy-duty power transmission equipment.