The Timken Company 415551 Radial Shaft Oil Seal

The Timken National 415551 radial shaft oil seal is a Type 41, multi-lip with spring seal designed to retain lubricant and prevent contaminants from entering bearing assemblies in heavy‑duty rotating equipment. It is commonly installed in industrial gearboxes, pumps, electric motors, conveyors, and compressors, and features a steel-case with inner case, nitrile (NBR) lip material, and a Redi-Coat finish for reliable, field‑ready installation. Key dimensions include a shaft diameter of 7.500 in (190.500 mm), outside diameter 9.010 in (228.854 mm), housing bore 9.000 in (228.600 mm), and overall width 0.750 in (19.050 mm). Specifications include maximum shaft surface speed 3000 ft/min, a 7 psi pressure rating, and an operating temperature range of -40°F to 225°F (-40°C to 107°C). Common replacements include SKF 75050, CR 415551, and National 415551.