Timken National 416394 Oil Seal Radial Shaft Seal

The Timken National 416394 is a heavy-duty radial shaft oil seal designed to retain lubricant and exclude contaminants in industrial rotating equipment such as gearboxes, pumps, electric motors, conveyors, and compressors. It features a Type 41 multi-lip with spring configuration and NBR (nitrile) lip material, housed in a steel case with an inner case and Redi-Coat finish for corrosion resistance during installation. Key dimensions include a shaft diameter of 8.500 in (215.900 mm), an outside diameter of 10.633 in (270.078 mm), a housing bore of 10.625 in (269.875 mm), and an overall width of 0.750 in (19.050 mm). The seal is part of Timken National’s 410000 series, with MPN 416394 and Type 41 lip design, and it is designed for operating speeds up to 3000 ft/min and misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm. It operates in a temperature range of -40°F to 225°F (-40°C to 107°C). Common replacements include SKF 416394, CR 416394, and National 416394.