Timken National 417550 Radial Shaft Oil Seal 417550

Timken National 417550 is an industrial radial shaft oil seal designed to retain lubricants and keep contaminants from entering rotating equipment. It uses a Type 41 multi-lip seal with a spring, housed in a steel case with inner case, and a nitrile (NBR) sealing element that minimizes lubricant leakage, extends bearing life, and helps reduce maintenance requirements. It is suitable for general-purpose industrial shaft sealing in gearboxes, pumps, conveyors, reducers, compressors, and electric motors operating under normal industrial conditions. Key dimensions include a shaft diameter of 5.312 in (134.925 mm), outside diameter of 6.507 in (165.278 mm), housing bore of 6.500 in (165.100 mm), and overall width of 0.500 in (12.700 mm). Redi-Coat is provided for installation. Maximum shaft surface speed is 3000 ft/min, with misalignment tolerance of 0.015 in at 800 rpm and 0.010 in at 4200 rpm, and a pressure rating of 7 psi. Operating temperature range is -40°F to 225°F (-40°C to 107°C). Series 410000, MPN 417550, with common replacements SKF 53151, CR 417550, and National 417550.