RS PRO Nitrile Rubber (NBR) Rotary Shaft Seal, 50 mm Inside Diameter, 72 mm Outside Diameter, 10 mm Thickness 226-3851

RS PRO 226-3851 Nitrile Rubber (NBR) Rotary Shaft Seal is a high-performance seal designed to provide efficient sealing in mechanical applications. With an inside diameter of 50 mm, outside diameter of 72 mm, and thickness of 10 mm, this seal is well-suited for driveshafts, crankshafts, and hydraulic cylinders where rotating shafts require lubrication retention.

Constructed from nitrile rubber (NBR), the seal balances cost-effectiveness with excellent resistance to lubrication oils, hydraulic fluids, and grease. It is ideal for industrial, mechanical, automotive, and hydraulic equipment requiring robust and reliable sealing solutions.

The seal’s operating temperature range extends from -20°C to 90°C, allowing it to perform reliably within diverse environmental conditions. Its hardness rating of 70 ±5 Shore A, tensile strength of 18.9 MPa, elongation at break of 438%, and tear resistance of 58 N/mm ensure mechanical robustness and longevity in demanding applications.

The specific gravity of approximately 1.25 g/cm³ contributes to the seal’s solid material consistency and durability. However, it is important to note that this nitrile rubber seal is not suitable for exposure to brake oil, phosphoric ester, or ester-based fluids, which may compromise seal performance.

The seal is made from cost-effective and commonly available nitrile rubber (NBR) material. Designed for use in driveshafts, crankshafts, and hydraulic cylinders with rotating shafts. Resistant to lubrication oils, hydraulic fluids, and grease, ensuring reliable operation.

Not compatible with brake oil, phosphoric ester, and ester-based fluids. Operating temperature range between -20°C and 90°C for versatile industrial applications. Hardness rating of 70 ±5 Shore A for optimal durability. Tensile strength of 18.9 MPa with elongation up to 438% ensures flexible sealing.

Tear resistance rated at 58 N/mm and specific gravity of approximately 1.25 g/cm³.

This seal is essential in maintaining the integrity and efficiency of mechanical assemblies by preventing lubricant leakage and ingress of contaminants. Common applications include automotive repair, manufacturing machinery maintenance, and hydraulic system servicing.

Browse our extensive selection of mechanical Seals and related components at EnvMart for reliable sealing solutions tailored to your industrial and mechanical needs.