The Timken Company 472539 Multi-Lip Oil Seal

The Timken National Oil Seal 472539 is a double-lip, spring-loaded oil seal that retains lubricant and protects rotating shaft systems from dirt, moisture, and other contaminants. This inch-sized seal has a shaft diameter of 1.000 in (25.40 mm), an outer diameter of 2.537 in (64.44 mm), a housing bore of 2.533 in (64.34 mm), and an overall width of 0.250 in (6.35 mm). Constructed of nitrile (NBR) with a 60–80 durometer, it features a solid housing without inner case and is Redi-Coat ready, capable of continuous operation from -40°F to 225°F (-40°C to 107°C), a maximum shaft surface speed of 3000 ft/min, and a misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm. Widely used in industrial gearboxes, pumps, electric motors, conveyors, manufacturing equipment, agricultural machinery, and general power transmission systems, it supports replacement, rebuilds, retrofits, and preventive maintenance to extend service life.