The Timken Company 418027 Radial Shaft Oil Seal

The Timken National 418027 radial shaft oil seal is designed to retain lubricant and exclude contaminants from rotating equipment, making it a common choice for industrial gearboxes, pumps, electric motors, conveyors, and compressors. This Type 41, 410000-series seal uses a multi-lip spring-loaded nitrile (NBR) sealing element set in a steel case with inner case and a Redi-Coat finish, rated for up to 7 psi and a maximum shaft speed of 3000 ft/min. Key dimensions include a 2.625 in (66.675 mm) shaft diameter, a 4.441 in (112.801 mm) outer diameter, a 4.437 in (112.700 mm) housing bore, and an overall width of 0.437 in (11.100 mm). The seal tolerates misalignment of 0.015 in at 800 rpm and 0.010 in at 4200 rpm and operates from -40°F to 225°F (-40°C to 107°C). It is commonly used in general-purpose industrial sealing applications across industrial machinery, pumps, reducers, conveyors, and electric motors, and is cross-listed with SKF 418027 and National 418027.