The Timken Company 475384 Multi-Lip Radial Oil Seal

The Timken National Oil Seal 475384 is a double-lip, spring-loaded radial oil seal designed to retain lubricants while excluding dirt, moisture, and other contaminants from rotating shaft systems. It is commonly used in industrial gearboxes, pumps, electric motors, conveyors, agricultural equipment, and power transmission machinery operating in demanding environments, supporting replacements, rebuilds, retrofits, and preventive maintenance for reliable sealing performance. Key specifications include an inch-based design with a shaft diameter of 2.812 in (71.425 mm), outside diameter of 4.008 in (101.803 mm), housing bore of 4.003 in (101.676 mm), and overall width of 0.468 in (11.887 mm); maximum shaft surface speed of 3000 ft/min; misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm; continuous operating temperature from -40°F to 225°F (-40°C to 107°C); weight 0.35 lb (0.159 kg). The seal features nitrile (NBR) lip material, a solid construction without an inner case, and Redi-Coat for easier installation, and it is associated with Timken’s 470000 series with common cross-reference options to SKF, CR (Chicago Rawhide) equivalents, and the National 470000 series.