The Timken Company 417505 Radial Shaft Oil Seal

The Timken Company 417505 radial shaft oil seal is a general‑purpose industrial seal designed to retain lubricant while blocking dirt, dust, and moisture from entering rotating equipment such as gearboxes, pumps, conveyors, electric motors, and reducers. It uses a Type 41 multi‑lip configuration with a spring and a nitrile (NBR) sealing element to provide reliable oil sealing under normal industrial conditions. Key dimensions include a shaft diameter of 3.875 in (98.425 mm), an outer diameter of 5.506 in (139.852 mm), a housing bore of 5.501 in (139.725 mm), and an overall width of 0.500 in (12.700 mm); it employs a steel case with an inner case and is Redi-Coat ready. The seal supports 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 a pressure rating of 7 psi, operating from -40°F to 225°F (-40°C to 107°C). Common replacements include SKF 38749, CR 417505, and National 417505.