# TIMKEN 21840-4186 Large Bore Seal The TIMKEN 21840-4186 Large Bore Seal is a high-performance sealing solution designed to ensure optimal protection for rotating shafts in various industrial applications. Manufactured from high-quality NBR (Buna-N) material, this single lip seal with a garter spring provides exceptional resistance to wear, abrasion, and chemical exposure, making it ideal for demanding environments.
Key Features • **Material Composition**: Constructed from durable Nitrile (NBR) material, offering excellent resistance to oils, water, and high temperatures. • **Design**: Single lip design with a garter spring ensures a secure fit and consistent sealing performance. • **Size Specifications**: Designed for large bore applications, providing a snug fit for shafts of varying diameters. • **Temperature Range**: Operates effectively in a temperature range of -40°F to 250°F (-40°C to 121°C), ideal for both low and high-temperature environments. • **Pressure Rating**: Capable of withstanding pressures up to 30 PSI, ensuring reliable sealing under operational stress.
Applications • **Industrial Machinery**: Perfect for use in heavy-duty industrial equipment, including pumps, motors, and gearboxes. • **Automotive**: Suitable for various automotive applications where reliable sealing is crucial for performance and longevity. • **Aerospace**: Effective in aerospace environments where precision and reliability are paramount. • **Energy Sector**: Ideal for sealing applications in renewable energy systems, such as wind turbines and solar energy equipment.
Benefits • **Enhanced Reliability**: The high-quality NBR construction minimizes the risk of seal failure, ensuring long-lasting performance. • **Improved Efficiency**: Reduces leakage and contamination, leading to improved machinery efficiency and reduced maintenance costs. • **Versatile Use**: The wide temperature and pressure tolerance makes it adaptable for both industrial and automotive applications.