The Timken Company 412028 Radial Shaft Oil Seal

Timken National 412028 radial shaft oil seal is a double-lip, spring-loaded seal designed for general‑purpose industrial shaft sealing in rotating equipment. Its nitrile (NBR) lips, paired with a steel case with inner case, help retain lubricant and prevent contaminants from entering bearing assemblies in gearboxes, pumps, electric motors, conveyors, and compressors. The seal fits a 2.000 in shaft (50.800 mm) with an outside diameter of 3.355 in (85.217 mm), a housing bore of 3.350 in (85.090 mm), and an overall width of 0.469 in (11.887 mm). It is part of the 410000 series (Type 41) and supports up to 3000 ft/min shaft surface speed, operating from -40°F to 225°F (-40°C to 107°C). Maintenance teams, OEMs, and system integrators use this oil seal for preventive maintenance, equipment repair, and seal replacement to minimize lubricant leakage and extend bearing service life. Common replacements include SKF 412028, CR 412028, and National 412028.