RS PRO Nitrile Rubber (NBR) Rotary Shaft Seal 28 mm ID, 40 mm OD, 7 mm Thickness 226-3768

RS PRO 226-3768 Nitrile Rubber (NBR) Rotary Shaft Seal featuring a 28 mm inside diameter, 40 mm outside diameter, and 7 mm thickness. This seal is manufactured from nitrile rubber, which is widely recognized for its cost-effectiveness and reliable sealing properties in mechanical and fluid power applications.

The seal is commonly employed in driveshafts, crankshafts, and hydraulic cylinders, where it functions to contain lubrication oils and grease effectively while protecting the shaft from contaminants. The NBR material offers good chemical resistance, particularly to lubrication oils, hydraulic fluids, and grease, making it ideal for such uses. However, it is not suitable for brake oils, phosphoric ester, or ester-based fluids.

Key material properties include a hardness of 70 ±5 Shore A, tensile strength of 18.9 MPa, elongation of 438%, specific gravity near 1.25 g/cm³, and tear resistance rated at 58 N/mm. Its color is black, aiding visual inspections during maintenance.

Operating temperature ranges from -20°C up to 90°C, allowing versatility in various industrial and mechanical environments.

This rotary shaft seal is suitable for industrial, automotive, hydraulic, and mechanical applications where reliable sealing of rotating shafts is vital for system efficiency and longevity.

The seal is constructed from nitrile rubber (NBR) for resilience and chemical resistance. Provides effective sealing in rotary shaft applications such as driveshafts and crankshafts. Offers robust performance in lubrication oils, hydraulic fluids, and grease environments.

Operates reliably across a temperature range of -20°C to 90°C. Exhibits high hardness and tensile strength for mechanical durability. Designed for use in industrial and mechanical fluid power systems. For further precision sealing needs or related products, explore the Seals category at EnvMart.