Timken 415004 Industrial Radial Shaft Oil Seal

The Timken National 415004 radial shaft oil seal is a dual‑lip nitrile (NBR) seal designed to retain lubricant and prevent contaminants from entering bearing assemblies in industrial rotating equipment. Part of the 410000 series, this Type 41 seal uses a steel case with inner case and a dual‑lip with spring configuration to handle demanding environments in gearboxes, pumps, electric motors, conveyors, compressors, and other general‑purpose power transmission equipment. It features a shaft diameter of 2.750 in (69.850 mm), an outside diameter of 3.756 in (95.402 mm), a housing bore of 3.751 in (95.275 mm), and an overall width of 0.500 in (12.700 mm). Redi‑Coat treatment is included, and the seal is rated for a maximum shaft surface speed of 3000 ft/min with an operating temperature range of -40°F to 225°F (-40°C to 107°C). Common replacements include SKF 27370, CR 415004, and National 415004. Applications emphasize reliable lubricant retention and protection against dust, dirt, and moisture in industrial gearboxes, pumps, electric motors, conveyors, compressors, and other rotating machinery where sealing performance directly impacts equipment reliability and maintenance downtime.