The Timken Company 417621 Radial Shaft Oil Seal

The Timken 417621 radial shaft oil seal is a Type 41, Series 410000 industrial seal engineered to retain lubricants and prevent contaminants from entering rotating equipment. It uses a spring-loaded multi-lip configuration with a nitrile (NBR) sealing element to provide reliable oil sealing while excluding dirt, dust, and moisture across gearboxes, pumps, conveyors, motors, and other power transmission components. Key dimensions include a shaft diameter of 3.125 in (79.375 mm), an outside diameter of 4.130 in (104.902 mm), a housing bore of 4.125 in (104.775 mm), and an overall width of 0.375 in (9.525 mm). The seal is built with a steel case and inner case and is Redi-Coat ready. Performance specs include a maximum shaft surface speed of 3000 ft/min, misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm, a 7 psi pressure rating, and an operating temperature range from -40°F to 225°F (-40°C to 107°C).