O-Ring 5x1 NBR 70 ShA

Applications

The O‑Ring 5x1 NBR 70 ShA (Pack 100) is a precision engineering sealing component designed for industrial B2B procurement. With an inner diameter of 5 mm and a cross-section of 1 mm, manufactured from nitrile rubber (NBR) at a hardness of 70 ShA, this rubber gasket excels in hydraulic, pneumatic and general engineering applications. It serves as a reliable O-Ring, static seal or industrial sealing ring in pumps, valves, gearboxes, compressors and other assemblies requiring high resistance to oils and greases. The packaging of 100 pieces supports maintenance and service environments where batch procurement and cost-efficient inventory are critical.

Advantages

• High durability and chemical resistance: The NBR compound at 70 ShA offers excellent resistance to mineral oils, lubricants and hydraulic fluids, making this sealing ring well-suited for industrial sealing environments.

• Compact, precise size: The dimension 5x1 mm ensures compatibility with compact grooves and installations where space is limited, enabling accurate integration of the rubber seal and reducing leakage risk.

• Bulk packaging for procurement efficiency: Supplied as a pack of 100 pcs, it allows procurement teams to optimise both cost per unit and inventory planning — ideal for industrial buyers, service workshops and operation managers.

• Versatile use in hydraulic and pneumatic systems: Whether applied in static applications (stationary sealing) or moderate dynamic ones (such as moving pistons or sliding interfaces), this O-Ring offers dependable performance when correctly installed.

• Local availability and rapid supply: Stocked in our warehouse and store in Lublin (ul. Smoluchowskiego 1, building 4) with 24 h dispatch capability, this ensures your industrial operations can maintain minimal downtime.

Technical Data

• Inner diameter (ID): 5 mm

• Cross-section (CS): 1 mm

• Material: Nitrile Butadiene Rubber (NBR)

• Hardness: 70 Shore A

• Colour: Black (standard NBR)

• Pack quantity: 100 pieces

• Typical working temperature range: approx. -30 °C up to +100 °C (depending on media and operating conditions)

• Primary application sectors: industrial sealing, rubber gasket in hydraulic/pneumatic systems, compact sealing ring for engineering equipment

• Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4 - in-house stock, fast shipping available

Installation recommendation: Ensure the groove or gland matches the 5x1 profile, clean all mating surfaces, use compatible lubricant if required, and avoid excessive deformation of the O-Ring during fitting to maintain optimal sealing performance.

FAQ

Q1: What makes the NBR 70 ShA material suitable for industrial sealing?
A1: NBR at 70 ShA provides a strong balance between flexibility and resilience, offering high resistance to oils, greases and many hydraulic fluids. This makes it an appropriate choice for rubber gaskets and O-Rings in demanding environments.

Q2: Is this O-Ring suitable for dynamic applications such as pistons or sliding seals?
A2: Yes, while this O-Ring is ideal for static sealing, it can be used in moderate dynamic applications (e.g., slow-moving pistons or sliding mechanisms) provided the installation has appropriate groove design, lubrication and correct surface finish. For high-speed or high-temperature motion, more specialised materials might be considered.

Q3: What are the typical temperature limits for this 5x1 NBR 70 ShA ring?
A3: The typical working temperature range is approx. -30 °C to +100 °C for standard conditions. If the application involves higher temperatures, aggressive media or prolonged exposure, then material limits must be verified.

Q4: Why is a pack of 100 pieces beneficial for industrial buyers?
A4: A bulk pack of 100 pieces reduces procurement frequency, lowers cost per unit, simplifies inventory management and ensures spare parts are immediately available for maintenance or service teams — improving operational readiness.

Q5: How do I ensure the correct groove and installation for a 5x1 mm O-Ring?
A5: Match the groove dimensions to the inner diameter and cross-section to avoid over-stretching the ring. Clean the contact surfaces, check compatibility with the medium and use a proper lubricant to facilitate installation and prevent damage to the rubber gasket.