O-Ring 7x3 mm NBR

O-Ring 7x3 mm NBR 70 ShA - Nitrile Rubber Sealing Ring (Pack of 1000)

The 7x3 mm NBR 70 ShA O-Ring is a professional-grade nitrile rubber sealing ring, widely used in hydraulic, pneumatic, automotive, and industrial systems. Its robust formulation and precise dimensions make it suitable for both static and dynamic sealing applications.

Made from NBR (Nitrile Butadiene Rubber) with a standard hardness of 70 Shore A, it offers:

• Excellent oil and fuel resistance,

• Compatibility with water, air, and many chemicals,

• Good abrasion resistance and mechanical durability.

This O-ring has an inner diameter of 7 mm and a cross-section of 3 mm, which fits many standard sealing grooves and ensures long-term tightness under pressure.

Available in a cost-effective industrial pack of 1000 pieces, it’s ideal for mass production, service centers, and maintenance departments.

All products at simmering.pl are professionally packaged in labeled, resealable bags, ready for direct use or resale.

Applications:

• Hydraulic cylinders and pumps

• Pneumatic actuators and valves

• Automotive repairs and machinery

• Compressors, fittings, industrial piping

• OEM and aftermarket sealing solutions

FAQ - Frequently Asked Questions:

What is NBR rubber?
NBR (Nitrile Butadiene Rubber) is the most commonly used elastomer for oil and fuel resistance. It provides excellent durability in industrial sealing applications.

What does 70 ShA mean?
70 Shore A is a standard hardness level that offers a perfect balance between flexibility and resistance to compression and wear.

Is this suitable for dynamic use?
Yes, if properly installed and lubricated, this O-ring can operate in dynamic conditions such as rotating shafts or reciprocating pistons.

Are other sizes and materials available?
Yes - at simmering.pl we offer O-rings in hundreds of sizes and materials like FKM (Viton®), EPDM, and silicone for specialized uses.

How is the product packed?
O-rings are packed in transparent, resealable plastic bags (1000 pcs), labeled with size and material for easy identification.

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