Timken National 416444 Radial Shaft Oil Seal Heavy Duty

The Timken National 416444 radial shaft oil seal is a heavy‑duty industrial seal designed to retain lubricant and prevent contaminants from entering bearing assemblies in rotating equipment such as gearboxes, pumps, electric motors, conveyors, and compressors. It uses a Type 41 multi‑lip with spring configuration and nitrile (NBR) lip material, housed in a steel case with an inner case, and includes a Redi‑Coat finish for durability. Key dimensions include a shaft diameter of 2.312 in (58.725 mm), outside diameter of 3.505 in (89.027 mm), housing bore of 3.500 in (88.900 mm), and an overall width of 0.375 in (9.525 mm). The seal is part of Timken National’s Series 410000 and is rated for a maximum shaft surface speed of 3000 ft/min, with misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm, and an operating temperature range from -40°F to 225°F (-40°C to 107°C). Redi‑Coat availability and common replacements such as SKF 416444, CR 416444, and National 416444 help support preventive maintenance, equipment repair, and seal replacement across heavy‑duty transmission and rotational systems.