RS PRO Nitrile Rubber (NBR) Rotary Shaft Seal 38 mm ID, 52 mm OD, 7 mm Thickness 226-3808

RS PRO 226-3808 is a high-quality Nitrile Rubber (NBR) rotary shaft seal designed to provide reliable sealing for rotating shafts in industrial applications. This seal features a 38 mm inside diameter, 52 mm outside diameter, and a thickness of 7 mm, making it suitable for precise fitment on driveshafts, crankshafts, and hydraulic cylinders where contamination prevention and lubrication retention are critical.

The NBR material provides excellent resistance against common lubrication oils, hydraulic fluids, and greases encountered in heavy machinery and fluid power equipment. Its operating temperature range from -20°C to 90°C allows it to perform reliably in varied industrial climates and operational conditions.

This seal exhibits a hardness of 70 ±5 Shore A, tensile strength of 18.9 MPa, and elongation up to 438%. These mechanical properties ensure durability, flexibility, and the ability to maintain effective sealing under mechanical stress and rotational motion. The specific gravity of 1.25 ±0.03 g/cm³ and tear resistance of 58 N/mm further contribute to its robust construction and long service life.

Common applications include use in driveshafts, crankshafts, and hydraulic cylinders that are lubricated by oil or grease. It is not recommended for use with brake oil, phosphoric ester, or ester-based fluids. This product offers an optimal balance of performance and cost-effectiveness in industrial sealing needs.

Constructed from cost-effective Nitrile Rubber (NBR) material offering good resistance to lubrication oils and hydraulic fluids. Ideal for use in driveshafts, crankshafts, and hydraulic cylinders needing reliable oil or grease sealing.

Seal type is rotary shaft seal suitable for rotating shaft applications. Operating temperature range between -20°C to 90°C for diverse industrial environments. Hardness of 70 ±5 Shore A ensuring effective sealing performance.

Superior tensile strength of 18.9 MPa providing durability under mechanical stress. Elongation up to 438% allowing flexible sealing capabilities. Specific gravity of 1.25 ±0.03 g/cm³ ensuring material density consistency.

Excellent tear resistance rated at 58 N/mm for extended seal life.

This RS PRO seal is ideal for use in mechanical, fluid power, manufacturing, and automotive industries. For more sealing solutions and compatible industrial parts, explore the EnvMart catalogue.

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