Timken 471887 Oil Seal

The Timken National Oil Seal 471887 is a double-lip oil seal with a spring designed to retain lubricants while preventing dirt, moisture, and other contaminants from entering rotating shaft systems. Used in industrial gearboxes, pumps, electric motors, conveyors, manufacturing equipment, and agricultural machinery, it supports maintenance tasks such as replacements, rebuilds, retrofits, and preventive maintenance to extend bearing life and protect lubricated components. Manufacturer Timken; Brand National; Product Type Oil Seal; Series 470000; Design Type Type 47; Material Nitrile (NBR); Lip Material Nitrile Rubber (NBR); Construction Steel Case Without Inner Case; Redi-Coat Yes; Measurement System Inch; Shaft Diameter 2.437 in (61.90 mm); Outside Diameter 3.130 in (79.50 mm); Housing Bore 3.125 in (79.38 mm); Overall Width 0.375 in (9.525 mm); Maximum Shaft Surface Speed 3000 ft/min; Pressure Rating 7 psi; Misalignment Tolerance 0.015 in at 800 rpm; 0.010 in at 4200 rpm; Continuous Operating Temperature -40°F to 225°F (-40°C to 107°C); Weight 0.13 lb (0.06 kg). Common replacements include SKF Equivalent Oil Seal; CR (Chicago Rawhide) Equivalent Oil Seal; National 470000 Series Oil Seal.