O-ring NBR 15x2,5 mm

Applications & Compatibility | Material Performance & Benefits | Technical Data & Installation Tips

• The O-Ring 15x2.5 mm NBR 70 Shore A is a durable, nitrile rubber sealing ring widely used in industrial, automotive, hydraulic, and fluid systems. With inner diameter (15 mm) and cross section (2.5 mm), this O-ring fits typical metric sealing grooves and provides reliable sealing performance under oil, grease, and many common fluids. Catalog references list it as OR-15X2.50-NBR70. The O-ring-stocks site confirms its availability and standard dimensions.

  This particular offer is supplied in a bulk pack of 1000 pieces, making it ideal for B2B applications—service workshops, OEMs, and maintenance departments seeking to maintain stock without frequent reorder.

  In English search queries, customers often enter terms such as:

• “O-Ring 15x2.5 NBR 70”

• “nitrile O-ring 15x2.5 mm”

• “oil resistant O-ring 15x2.5”

• “OR-15X2.50-NBR70 pack 1000”

• “metric nitrile sealing ring 15x2.5”

This description integrates those key phrases (e.g. O-Ring 15x2.5 NBR 70, oil-resistant O-ring, nitrile sealing ring) and appropriate synonyms (e.g. seal ring, rubber gasket) to enhance search relevance.

Applications & Compatibility

• Utilized in hydraulic and pneumatic systems for sealing small pistons, valve stems, fittings, and couplings

• Employed in automotive and machinery components for fuel lines, sensors, injectors, and oil circuits

• Suitable for instrumentation and compact devices where tight sealing in narrow grooves is needed

• In OEM assembly lines, repair kits, and mass installations — bulk quantity (1000 pcs) ensures stock continuity

The hardness of 70 Shore A ensures a good balance between elasticity and compressive strength, allowing effective sealing without excessive deformation.

Material Performance & Benefits

NBR (nitrile rubber) with 70 Shore A hardness is a standard elastomer for many sealing applications due to:

• Strong resistance to oils, greases, fuels, and many hydraulic fluids

• Adequate elastic recovery and resilience under compression cycles

• Typical working temperature range from -30 °C to +100 °C, with occasional tolerance to +125 °C in controlled conditions

• Good abrasion resistance and mechanical stability under repeated use

Pikron notes that NBR 70 is resistant to many oil types and water, but not to strong solvents, ozone, or UV exposure.

Technical Data & Installation Tips

Installation Guidelines:

• Lubricate O-ring lightly (compatible lubricant) to ease installation and protect sealing lip

• Avoid twisting or stretching beyond limits; place evenly in groove

• Ensure groove edges are smooth and free of burrs

• Control compression to avoid extrusion or damage

• Inspect periodically in dynamic or high-stress applications

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This bulk version is distinct from smaller consumer packs on simmering.pl to avoid internal competition while targeting industrial buyers.

FAQ (Frequently Asked Questions)

Q: What do the dimensions “15x2.5 mm NBR 70” mean?
A: It means the O-ring has 15 mm inner diameter and 2.5 mm cross-section, made of nitrile rubber at 70 Shore A hardness.

Q: Is it oil-resistant?
A: Yes — NBR 70 is commonly used for sealing against oils, greases, and many fuel types in moderate temperature ranges.

Q: Why choose a pack of 1000?
A: Bulk packaging ensures constant stock availability, useful for manufacturing, service, or maintenance operations.

Q: What is the working temperature range?
A: Generally - 30 °C to + 100 °C; under favorable conditions, short exposure to + 125 °C may be tolerated.

Q: Can this O-ring be used in dynamic settings?
A: Yes, for moderate speeds and low friction; for high-speed dynamic sealing, specialized materials may be preferable.