O-Ring 30x2 mm NBR

Applications

This O-Ring is designed for rigorous industrial applications where reliable sealing is critical. Whether employed in hydraulic cylinders, pneumatic units, automotive assemblies or general machine-maintenance kits, this seal ring excels. Its compact dimension (30 mm inner diameter x 2 mm cross-section) makes it ideal for standard groove profiles, while the choice of nitrile rubber (NBR) at 70 ShA hardness ensures compatibility with oils, greases, fuels and a variety of technical fluids. Search trends globally show frequent queries such as “NBR O-Ring 30x2”, “oil-resistant O-Ring NBR70”, “industrial sealing ring nitrile 30x2” and “bulk O-Ring pack 100 NBR70”.
Industries served include: • hydraulic systems and valves • pneumatic actuators and cylinders • automotive fuel, oil and coolant circuits • general machine building and OEM supply • maintenance, repair and service (MRO) operations

Advantages

• High durability & chemical resistance - The nitrile (NBR) compound withstands contact with mineral oils, lubricants, greases and hydraulic media, offering a dependable sealing solution for industrial environments.
• Optimal hardness (70 ShA) - Balances flexibility and mechanical strength: the O-Ring seals effectively without excessive deformation, even under pressure or in dynamic/static seals.
• Standard metric size & pack format - 30x2 mm is a widely referenced dimension so procurement is simplified. Available in a bulk pack of 100 pieces, enabling efficient stocking for production runs or servicing.
• Fast availability - Our warehouse in Lublin enables 24h dispatch, supporting urgent B2B procurement and minimizing downtime.

Technical Data

• Inner Diameter (ID): 30 mm

• Cross-Section (CS): 2 mm

• Material: Nitrile Rubber (NBR)

• Hardness: 70 Shore A

• Colour: Black

• Temperature range: approx. -30 °C to +100 °C (short-term up to ~+120 °C)

• Pack size: 100 pieces

• Typical keywords: O-Ring, NBR 70, oil-resistant seal ring, sealing solution, hydraulic O-Ring, industrial O-Ring bulk pack
  Search behaviour indicates frequent use of terms like “oring NBR70 30x2”, “seal ring 30x2 oil resistant”, “bulk o-ring pack 100 NBR” and “industrial nitrile O-ring 30mm ID”.

FAQ

Q1: What does “70 ShA” indicate in this O-Ring specification?
A1: It refers to Shore A hardness - 70 means a firm yet flexible compound, ideal for sealing applications which require both resilience and flexibility, particularly in oil-rich environments.

Q2: Can this O-Ring be used in hydraulic and pneumatic systems?
A2: Yes. NBR at 70 ShA is widely used in hydraulic and pneumatic applications due to its resistance to mineral oils, lubricants and typical working media, making it suitable for both static and low-dynamic seals.

Q3: What is the benefit of purchasing a bulk pack of 100 pieces?
A3: For industrial buyers, OEMs and maintenance departments, bulk packaging ensures cost-effectiveness, consistent stock levels, reduced administrative cost per unit and readiness for rapid servicing.

Q4: What temperature range can I expect for this O-Ring?
A4: Standard recommended temperature range is between -30 °C and +100 °C for continuous operation; short-term exposure up to +120 °C is possible in many installations.

Q5: How do I ensure proper installation and sealing performance?
A5: Ensure the groove is clean and dimensionally correct for a 30x2 mm O-Ring, apply a thin layer of compatible lubricant if recommended, install without twisting the ring and ensure the mating surfaces are free of sharp edges and contamination.