Timken 6380 Oil Seal

The Timken National Oil Seal 6380 delivers dependable lubricant retention and contamination protection for rotary shafts in industrial gearboxes, pumps, agricultural equipment, and heavy-duty power transmission systems. Manufactured by Timken (National) with the part number 6380, this single-piece oil seal uses nitrile rubber (NBR) on a steel case and features a spring-loaded sealing lip for durable, consistent contact. Designed for inch (imperial) design units, it is lubricated for grease and oil and operates from -40 °F to 225 °F (-40 °C to 107 °C). Common applications include gearboxes, wheel-end assemblies, pumps, conveyors, and other rotating machinery where effective lubricant retention and protection from dirt, moisture, and contaminants are required for reliable long-term operation. OEMs, maintenance teams, and system integrators use this seal for repairs, retrofit projects, and preventive maintenance to minimize lubricant leakage and extend equipment life. Common replacements include National 6380, SKF 6380, and CR 6380.