Timken 415854 Oil Seal

Timken National 415854 oil seal is a heavy‑duty radial shaft seal designed to retain lubricant and exclude contaminants in rotating equipment. This Type 41 multi‑lip seal with spring, built on Timken’s 410000 series, uses nitrile (NBR) lips for dependable lubrication retention in harsh industrial environments. It is commonly installed in industrial gearboxes, pumps, electric motors, conveyors, compressors, and mining equipment where reliable shaft sealing reduces lubricant leakage and extends bearing service life. Key specs include a 6.250 in shaft diameter (158.750 mm), an outside diameter of 7.881 in (200.177 mm), a housing bore of 7.875 in (200.025 mm), and an overall width of 0.750 in (19.050 mm). The seal features a steel case with inner case construction and Redi-Coat protection for easy handling and corrosion resistance. It supports up to 3000 ft/min shaft surface speed and a 7 psi pressure rating, with an operating temperature range from -40°F to 225°F (-40°C to 107°C). Manufacturer part number 415854; common replacements include SKF 62572, CR 415854, and National 415854.