Timken 455194 Oil Seal

Timken 455194 National Oil Seal is a single-lip oil seal with a loaded spring designed to retain lubricants and block dirt, moisture, and other contaminants from entering rotating shaft systems. This National-brand seal (MPN 455194) from Timken’s 450000 series features a Type 45 design with nitrile (NBR) lip material and a 60–80 durometer, solid inner-case construction, and it is sized in inches with a shaft ID of 4.187 in, an OD of 5.256 in, a housing bore of 5.251 in, and a width of 0.468 in; Redi-Coat protection is included. It supports up to 3000 ft/min shaft surface speed and tolerates misalignment of 0.015 in at 800 rpm or 0.010 in at 4200 rpm, with a continuous operating temperature range from -40°F to 225°F (-40°C to 107°C) and an approximate weight of 0.69 lb. Typical applications include industrial gearboxes, pumps, electric motors, conveyor systems, manufacturing equipment, off-highway machinery, and power transmission systems, where it helps reduce lubricant leakage and prevent contaminant ingress in general purpose rotating equipment. Common replacements include SKF equivalent oil seals, Chicago Rawhide (CR) equivalents, and National 450000-series oil seals.