O-Ring 12x2.5 NBR 70 ShA
search
  • O-Ring 12x2.5 NBR 70 ShA

O-Ring 12x2.5 NBR 70 ShA

66 pcs.
€1.55 (net)
Price for: 100pcs.

The NBR O-Ring 12x2.5 mm 70 ShA (100 pcs) is a reliable sealing solution for workshops, maintenance departments and machine servicing. Manufactured from durable Buna-N rubber, it offers excellent resistance to mineral oils, greases and hydraulic fluids while providing dependable sealing performance in a wide variety of industrial and mechanical applications. The convenient 100-piece pack is ideal for regular maintenance and repair work.

Warehouse and Store

Lublin

Smoluchowskiego 1 Street

Building 4

We supply customers throughout Poland and the European Union.

Buy cheaper - 1000 pieces.

Quantity

What is the NBR O-Ring 12x2.5 mm 70 ShA (100 pcs)?

The NBR O-Ring 12x2.5 mm 70 ShA is a precision-engineered sealing ring manufactured from NBR (Buna-N nitrile rubber) for static and dynamic sealing applications. This 100-piece pack is intended for maintenance technicians, service workshops, machine repair, hydraulic systems and pneumatic equipment where a practical quantity of replacement seals is required. The standard 70 Shore A hardness provides an excellent balance between flexibility, sealing efficiency and wear resistance.

Designed for Maintenance and Workshop Applications

The 12x2.5 mm O-ring is commonly used for:

  • Hydraulic cylinders
  • Pneumatic valves
  • Pumps
  • Hydraulic fittings
  • Industrial machinery
  • Agricultural equipment
  • Construction machinery
  • Machine servicing
  • Mechanical workshops
  • Maintenance and repair operations

Its dimensions make it suitable for many sealing applications requiring reliable resistance to mineral oils and lubricants.

Why Choose the 100-Piece Pack?

The 100-piece package is an excellent solution for:

  • Automotive workshops
  • Hydraulic service companies
  • Maintenance departments
  • Mechanical repair shops
  • Industrial service technicians
  • Small production runs
  • Regular equipment maintenance

It provides a convenient stock of frequently used sealing rings without requiring the storage space associated with larger industrial packaging.

Technical Specifications

Material: NBR (Buna-N Nitrile Rubber)

Hardness: 70 Shore A

Inside Diameter: 12 mm

Cross Section: 2.5 mm

Color: Black

Operating Temperature: Approximately -30°C to +100°C

Chemical Resistance:

  • Mineral oils
  • Lubricating greases
  • Hydraulic oils
  • Transmission oils
  • Fuels
  • Aliphatic hydrocarbons

Package Quantity:

100 pieces

Why Choose NBR 70 ShA?

NBR is one of the most widely used elastomers for industrial sealing applications because it offers:

  • Excellent resistance to mineral oils
  • Good wear resistance
  • Reliable elasticity
  • Stable sealing performance
  • Long service life under normal operating conditions

The 70 Shore A hardness is the standard choice for hydraulic, pneumatic and mechanical equipment.

Benefits During Operation

Selecting the correct O-ring helps to:

  • Prevent fluid leakage
  • Maintain sealing integrity
  • Protect mechanical components
  • Reduce maintenance downtime
  • Extend equipment service life
  • Improve system reliability

Storage Recommendations

For maximum service life, store O-rings:

  • In a dry environment
  • Away from direct sunlight
  • Protected from ozone exposure
  • At room temperature
  • In the original packaging

Proper storage helps preserve the physical properties of the elastomer.

FAQ

Is the 100-piece pack suitable for workshops?

Yes. It is an excellent quantity for repair shops, maintenance teams and technicians performing regular equipment servicing.

Is NBR resistant to hydraulic oil?

Yes. NBR offers excellent compatibility with most mineral-based hydraulic oils and lubricants.

Can this O-ring be used in pneumatic systems?

Yes. It is widely used in pneumatic valves, cylinders and industrial air systems.

Are other O-ring sizes available?

Yes. A wide range of NBR O-rings in various diameters and cross sections is available to suit different technical applications.

How do I select the correct O-ring size?

Measure the groove or shaft diameter together with the required cross section and compare them with the equipment manufacturer's specifications.

Frequently Asked Questions from Maintenance Technicians

Is 70 Shore A the most common hardness?

Yes. It is the standard hardness used in most hydraulic, pneumatic and industrial sealing applications.

Can NBR O-rings be used with grease?

Yes. NBR provides excellent compatibility with most industrial greases.

Can an O-ring be reused?

Reusing a compressed sealing ring is generally not recommended because sealing performance may be reduced.

Is this O-ring suitable for machine servicing?

Yes. The 12x2.5 mm size is commonly used during maintenance and repair of industrial, hydraulic and pneumatic equipment.

GRN
12X2.5
66 pcs.

Data sheet

Diameter in. (mm)
12
Thickness (mm)
2.5
Mark
GRN

You might also like