O-Ring 520x4 mm NBR

O-Ring 520x4 mm NBR 70 ShA - Nitrile Rubber Sealing Ring (Pack of 1)

The O-Ring 520x4 mm NBR 70 ShA is a premium-quality sealing ring crafted from Nitrile Butadiene Rubber (NBR) with a hardness of 70 Shore A. Designed for demanding industrial applications, this O-ring offers exceptional resistance to oils, fuels, greases, and hydraulic fluids, making it ideal for use in hydraulic and pneumatic systems, automotive components, and general machinery.

Technical Specifications:

• Inner Diameter (ID): 520 mm

• Cross-Section (CS): 4 mm

• Material: Nitrile Butadiene Rubber (NBR)

• Hardness: 70 Shore A

• Color: Black

• Temperature Range: -30°C to +135°C

• Standards Compliance: DIN 3771

Applications:

This O-ring is suitable for a wide range of applications, including:

• Hydraulic cylinders and pumps

• Pneumatic actuators

• Automotive fuel and oil systems

• Industrial machinery and equipment

• General-purpose sealing tasks

Material Advantages:

NBR 70 ShA offers a balanced combination of flexibility and durability. It provides excellent resistance to:

• Mineral oils and greases

• Hydraulic fluids (H, HL, HLP)

• Aliphatic hydrocarbons

• Water and aqueous solutions

However, it is not recommended for use with:

• Aromatic hydrocarbons

• Chlorinated hydrocarbons

• Ketones and esters

• Ozone and weathering exposure

📍 Warehouse: Smoluchowskiego 1, Building 4, Lublin, Poland

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Frequently Asked Questions (FAQ)

Q1: Is this O-ring suitable for high-pressure applications?
A: Yes, the NBR 70 ShA material provides excellent sealing performance in both low and high-pressure environments, making it suitable for various industrial applications.

Q2: Can this O-ring be used in outdoor applications?
A: While NBR offers good resistance to oils and fuels, it has limited resistance to ozone and UV radiation. For prolonged outdoor use, consider materials like EPDM or FKM.

Q3: What is the shelf life of NBR O-rings?
A: When stored properly in a cool, dry place away from direct sunlight, NBR O-rings can have a shelf life of up to 5 years.