RS PRO Nitrile Rubber (NBR) Rotary Shaft Seal 20 mm ID, 32 mm OD, 7 mm Thickness 226-3738

RS PRO 226-3738 is a Nitrile Rubber (NBR) Rotary Shaft Seal engineered to provide effective sealing for rotating shafts, with inside diameter 20 mm, outside diameter 32 mm, and thickness of 7 mm. This seal is commonly used in automotive and industrial hydraulic applications such as driveshafts, crankshafts, and hydraulic cylinders.

The NBR material is widely recognized for its excellent resistance to lubrication oils, hydraulic fluids, and grease, ensuring long service life and prevention of leaks in critical machinery components. It can operate efficiently in a temperature range from -20°C to 90°C. With a hardness shore of 70 ±5 Shore A, this oil seal balances flexibility and durability for dependable performance.

Mechanical properties include a tensile strength of 18.9 MPa and elongation at break of 438%, which contribute to its toughness and resistance against mechanical stresses during operation. The seal’s tear resistance of 58 N/mm further enhances its lifespan under tough operating conditions.

This seal is black colored and has a specific gravity around 1.25 g/cm³, making it suitable for diverse industrial use. However, it is not suitable for use with brake oils or fluids based on phosphoric esters or ester bases due to material incompatibility.

Typical industrial applications include manufacturing plants, construction equipment, automotive repair, and hydraulic machinery maintenance where reliable rotary shaft sealing is critical to system efficiency and safety.

Set contains 1 PC of RS PRO Nitrile Rubber Rotary Shaft Seal model 226-3738 as specified. The seal is made from cost-effective Nitrile Rubber (NBR) material, known for its good resistance to lubrication oils, hydraulic fluids, and grease.

Designed primarily for rotary shaft sealing applications including driveshafts, crankshafts, and hydraulic cylinders. The operating temperature ranges from -20°C to 90°C, making it versatile for various industrial environments.

The seal material hardness is 70 ±5 Shore A, providing durability and reliable sealing. It offers tensile strength of 18.9 MPa and elongation up to 438%, ensuring flexibility and resistance to mechanical stress. Not suitable for use with brake oil, phosphoric ester, or ester-based fluids.

The seal is black in color and has a specific gravity of approximately 1.25 g/cm³. High tear resistance of 58 N/mm adds to its robustness under demanding conditions. Explore more in the Seals category on EnvMart for matching components and accessories to support your mechanical maintenance and assembly requirements.