Timken 21158-3881 is a hi-performance single lip oil seal with a garter spring, constructed from NBR (nitrile) material for a standard operating range of -40°F to +250°F. This alternate hi-performance variant features a rubber-covered outer diameter for improved sealing in industrial shaft applications such as gearboxes, pumps, and motors. The design provides reliable fluid retention and contaminant exclusion in demanding environments.

# Seals The **TIMKEN 21158-3881 Seals** are high-performance sealing solutions designed to meet the rigorous demands of various automotive and industrial applications. Constructed from Nitrile (Buna-N), these seals provide exceptional resistance to wear, temperature fluctuations, and exposure to oils and grease, ensuring long-lasting performance and reliability. ## Key Features • **Material**: Made from high-quality Nitrile (Buna-N), offering excellent resistance to petroleum-based oils and greases, as well as water and other fluids. • **Design**: Single lip design with a garter spring enhances sealing effectiveness while minimizing friction during operation. • **Temperature Range**: Operates effectively in temperatures ranging from -40°F to 250°F (-40°C to 121°C), making it suitable for a wide range of environments. • **Durability**: Engineered for high-performance applications, these seals exhibit excellent wear resistance, ensuring a longer lifespan in demanding conditions. • **Versatility**: Compatible with various machinery and equipment in automotive, industrial, and aerospace sectors, providing a reliable sealing solution across multiple applications. ## Applications • Ideal for use in automotive systems, including engines, transmissions, and differentials, where reliable sealing is crucial. • Suitable for industrial machinery and equipment that require effective sealing to prevent contamination and fluid leakage. • Commonly used in hydraulic systems and pumps, where high-pressure containment is necessary. ## Benefits • **Enhanced Reliability**: The robust construction reduces the likelihood of seal failure, ensuring consistent operation in critical applications. • **Cost Efficiency**: With a longer service life, these seals reduce the frequency of replacements, contributing to lower maintenance costs over time. • **Improved Performance**: The precise design minimizes friction, leading to enhanced operational efficiency and reduced energy consumption. --- *Product information compiled with AI assistance for reference purposes.*