O-ring 3x1 mm NBR

Applications in industrial sealing

This nitrile rubber sealing ring (O-ring) with inner diameter 3 mm, cross-section 1 mm and hardness 70 ShA is engineered for demanding industrial environments. As a key component for fluid-tight connections, this seal is ideal for hydraulic and pneumatic systems, machine assemblies, rotary and static sealing tasks, as well as general maintenance. Provided in a bulk pack of 1 000 pieces, it serves production lines, spare-parts warehouses, and B2B operations where cost-effective, high-volume purchasing is required.

Advantages of this sealing solution

• High durability and oil resistance: Made from NBR (nitrile butadiene rubber) with t­hardness 70 ShA, this O-ring offers strong resistance to oils, greases and standard industrial fluids — making it suitable for both static and low-speed dynamic sealing applications.

• Cost-effective bulk supply: This 1 000-piece pack enables efficient stock-keeping and supports maintenance programmes and production runs — reducing risk of downtime from shortages.

• Compact dimensions, wide compatibility: With 3x1 mm size, the ring fits into tight sealing grooves, small actuators, valves, sensors and other assemblies — an advantage in industrial applications with space constraints.

• Industrial application readiness: Featuring a rubber sealing ring design for industrial applications, this product is used in hydraulics, pneumatics, machine tools, robotics and maintenance of rotating or static shafts.

• Integration with technical sealing strategy: Supplement your component supply with a reliable sealing part, facilitate swift replacement routines, support high availability in assemblies and ensure maintenance resilience.

Technical data

• Type: Rubber sealing ring (O-ring)

• Material: NBR (nitrile rubber)

• Hardness: 70 ShA

• Dimensions: inner diameter (ID) = 3 mm; cross-section (CS) = 1 mm

• Quantity: Bulk pack of 1 000 pieces

• Application: Uszczelka gumowa, uszczelnienie techniczne for hydraulic and pneumatic systems, industrial machines

• Key characteristics: oil-resistant, high durability, suitable for industrial applications, cost-optimized supply

• Keywords integrated: “oring”, “uszczelka gumowa”, “uszczelnienie techniczne”, “high durability”, “industrial applications”, “uszczelnienia do hydrauliki i pneumatyki”

FAQ

Q1: What does “70 ShA” mean in the context of an O-ring?
A1: It refers to the hardness of the rubber material on the Shore A scale. A hardness of 70 ShA strikes a balance between flexibility and resistance to deformation, making it suited for sealing in oil, grease and general industrial conditions.

Q2: Where can this O-ring be used in industrial applications?
A2: It is designed for applications in hydraulics, pneumatics, small actuators, machine tools, sensor mounts and any assembly requiring a reliable rubber sealing ring in size 3x1 mm. It works well in both static grooves and low-speed dynamic shafts.

Q3: Is NBR material appropriate for exposure to oils and greases?
A3: Yes — nitrile rubber (NBR) is known for excellent resistance to petroleum-based oils, greases and many standard industrial fluids. For more aggressive chemicals or higher temperatures, other materials like FKM may be considered instead.

Q4: Why buy a bulk pack of 1 000 pieces?
A4: Bulk packaging supports B2B buyers by lowering unit cost, ensuring high availability for maintenance and production operations, reducing risk of downtime and streamlining inventory for industrial procurement.

Q5: Can this O-ring be used on dynamic shafts or only static tasks?
A5: While primarily designed for static or low-speed dynamic sealing, it can serve in limited dynamic assemblies. For high-speed rotating shafts or heavy wear conditions, a dedicated dynamic seal (e.g., a radial shaft seal) may be more appropriate.