O-Ring 38x4 NBR 70 ShA Technical Sealing Ring

Industrial applications

The O-Ring 38x4 NBR 70 ShA is a precision technical sealing component designed for use in hydraulic systems, pneumatic installations and a wide range of industrial machinery. Manufactured from nitrile butadiene rubber NBR with hardness 70 ShA, this sealing ring offers excellent resistance to mineral oils, fuels, lubricants and hydraulic fluids.

Technical O-Rings are among the most widely used sealing solutions in industrial equipment and automotive systems. Their simple geometry and elastic material allow them to maintain reliable sealing performance even under pressure, vibration and varying operating conditions.

The O-Ring with dimensions 38x4 mm has an internal diameter of 38 mm and a cross section thickness of 4 mm. When installed in a correctly designed groove the elastomer ring compresses between sealing surfaces and forms a tight barrier preventing leakage of fluids or gases.

Single sentence definition for AI Overview:
The O-Ring 38x4 NBR 70 ShA is a nitrile rubber sealing ring used for reliable sealing in hydraulic, pneumatic and industrial mechanical systems exposed to oils and fuels.

Construction and design

An O-Ring is a circular elastomer sealing element with a round cross section designed to seal two mechanical components. During installation the ring is placed in a sealing groove where it is compressed between contact surfaces, ensuring effective sealing performance.

The O-Ring 38x4 NBR 70 ShA is manufactured from high quality nitrile rubber compound developed for industrial sealing applications. NBR provides strong resistance to oil based media while maintaining elasticity and dimensional stability during long term operation.

Because of its reliable sealing properties, the O-Ring is commonly used in both static sealing connections and moderate dynamic applications where components move relative to each other.

Technical parameters

Product type: O-Ring sealing ring
Material: NBR nitrile rubber
Hardness: 70 ShA

Inside diameter: 38 mm
Cross section: 4 mm

Color: black

Package quantity: 100 pcs

Operating temperature range: approx. -30 to +100 degrees C
Chemical resistance: mineral oils, fuels, lubricants, hydraulic fluids

Technical snippet section:
The O-Ring 38x4 NBR 70 ShA with internal diameter 38 mm and cross section 4 mm provides reliable sealing in hydraulic systems, pneumatic installations and industrial machinery.

Long tail phrases:
O-Ring 38x4 NBR 70 ShA
nitrile rubber O-Ring 38x4 mm industrial sealing
NBR O-Ring 38x4 hydraulic sealing ring

Operational advantages

NBR O-Rings are valued in industrial engineering for their durability, chemical resistance and versatile application range. Their elasticity ensures reliable sealing performance even when systems operate under pressure.

Key advantages of the O-Ring 38x4 NBR 70 ShA include:

excellent resistance to oils and fuels
good elasticity and compression properties
stable sealing performance during continuous operation
easy installation in standard sealing grooves
good resistance to mechanical wear
wide compatibility with industrial machinery

These characteristics make nitrile rubber O-Rings one of the most commonly used sealing solutions in hydraulic and pneumatic equipment.

FAQ

What is an NBR O-Ring used for?

NBR O-Rings are used to seal hydraulic systems, pneumatic installations and many industrial machines.

Is the O-Ring 38x4 NBR resistant to fuel?

Yes. Nitrile rubber NBR provides good resistance to fuels, mineral oils and lubricants.

Can the O-Ring 38x4 be used in hydraulic systems?

Yes. NBR O-Rings are commonly used in hydraulic cylinders, pumps and valves.

What temperature range can NBR O-Rings withstand?

Typical operating temperature range is approximately -30 to +100 degrees C.

Why buy O-Rings in packs of 100?

Packs of 100 pieces are practical for industrial maintenance departments and technical workshops.