Timken 21238-4071 is a large bore oil seal with a nitrile (NBR) single lip and garter spring. This hi-performance seal features a rubber-covered outer diameter for improved sealing in demanding industrial applications. It is designed for shaft sealing in gearboxes, pumps, and heavy equipment, offering reliable fluid retention and contaminant exclusion with an operating temperature range of -40°F to +250°F.

TIMKEN 21238-4071 Large Bore Seal The TIMKEN 21238-4071 Large Bore Seal is a high-performance sealing solution designed to provide superior protection against contaminants in demanding industrial applications. Manufactured with precision engineering, this seal is an essential component in various automotive and industrial machinery systems, ensuring optimal performance and longevity. ## Key Features • **Material**: Constructed from NBR (Nitrile Butadiene Rubber), offering excellent resistance to oils, water, and high temperatures. • **Design**: Features a single lip with a garter spring for enhanced sealing capability, ensuring a secure fit and reduced leakage. • **Bore Size**: Specifically designed for large bore applications, accommodating a wide range of shaft dimensions. • **Operating Temperature**: Capable of withstanding temperatures from -40°F to +250°F (-40°C to +121°C), providing reliability in extreme conditions. • **Durability**: Engineered for high wear resistance, ensuring a long service life and reduced maintenance costs. ## Applications • **Automotive Industry**: Ideal for use in various automotive components such as wheel bearings, driveshafts, and differentials. • **Industrial Machinery**: Suitable for rotary applications in industrial machines, hydraulic systems, and agricultural equipment. • **Compatibility**: Designed to fit a variety of large bore applications, enhancing versatility across different sectors. • **Operational Suitability**: Effectively seals against dust, dirt, and moisture, making it ideal for harsh operating environments. ## Benefits • **Enhanced Protection**: Provides a robust barrier against contaminants, prolonging the life of equipment and reducing downtime. • **Improved Efficiency**: The reliable sealing performance minimizes leakage, contributing to overall system efficiency. • **Cost-Effective**: Reduces the need for frequent replacements and maintenance, delivering significant savings over time. --- *Product information compiled with AI assistance for reference purposes.*