The Timken Company 416888 Radial Shaft Oil Seal

The Timken National 416888 is a Type 41, 410000-series radial shaft oil seal with a steel case and inner case, designed to retain lubricants and block contaminants in industrial gearboxes, pumps, electric motors, conveyors, compressors, and other power-transmission equipment. It uses a nitrile (NBR) sealing element and a spring-loaded multi-lip configuration to minimize leakage and extend bearing life. Key dimensions are shaft diameter 4.500 in (114.300 mm), outside diameter 5.506 in (139.852 mm), housing bore 5.500 in (139.700 mm), and overall width 0.500 in (12.700 mm); operating temperature range -40°F to 225°F (-40°C to 107°C) and a maximum shaft speed of 3000 ft/min, with a 7 psi pressure rating and misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm. Common replacements include SKF 44968 and National 416888.