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.
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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.
The 12x2.5 mm O-ring is commonly used for:
Its dimensions make it suitable for many sealing applications requiring reliable resistance to mineral oils and lubricants.
The 100-piece package is an excellent solution for:
It provides a convenient stock of frequently used sealing rings without requiring the storage space associated with larger industrial packaging.
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:
Package Quantity:
100 pieces
NBR is one of the most widely used elastomers for industrial sealing applications because it offers:
The 70 Shore A hardness is the standard choice for hydraulic, pneumatic and mechanical equipment.
Selecting the correct O-ring helps to:
For maximum service life, store O-rings:
Proper storage helps preserve the physical properties of the elastomer.
Yes. It is an excellent quantity for repair shops, maintenance teams and technicians performing regular equipment servicing.
Yes. NBR offers excellent compatibility with most mineral-based hydraulic oils and lubricants.
Yes. It is widely used in pneumatic valves, cylinders and industrial air systems.
Yes. A wide range of NBR O-rings in various diameters and cross sections is available to suit different technical applications.
Measure the groove or shaft diameter together with the required cross section and compare them with the equipment manufacturer's specifications.
Yes. It is the standard hardness used in most hydraulic, pneumatic and industrial sealing applications.
Yes. NBR provides excellent compatibility with most industrial greases.
Reusing a compressed sealing ring is generally not recommended because sealing performance may be reduced.
Yes. The 12x2.5 mm size is commonly used during maintenance and repair of industrial, hydraulic and pneumatic equipment.
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