O-ring 3,68x1,78 NBR

Industrial applications

O-ring 3,68x1,78 NBR 70 ShA is a compact precision sealing element designed for applications where space is limited and sealing accuracy is critical.

The 3,68x1,78 mm size is commonly used in:

• precision valves and micro components
• low and medium pressure pneumatic systems
• small hydraulic assemblies
• laboratory and measuring equipment
• industrial automation components

Within the technical sealing O-rings NBR category, this model represents the small-diameter segment, where tight tolerances and repeatability are essential.

Technical parameters

• Type: O-ring NBR
• Size: 3,68x1,78 mm
• Material: NBR
• Hardness: 70 ShA
• Temperature range: -30 to +100 C
• Color: black
• Packaging: 100 pcs

Technical note:
O-ring 3,68x1,78 NBR 70 ShA ensures reliable sealing in small-scale systems where dimensional precision and resistance to pressure variations are required.

Design and construction

This O-ring is manufactured from NBR elastomer with 70 ShA hardness, providing flexibility and resistance to mechanical stress.

Construction features:

• round cross section 1,78 mm
• inner diameter 3,68 mm
• high dimensional accuracy
• resistance to wear and deformation

NBR material provides resistance to:

• oils and greases
• fuels
• hydraulic fluids

Operational advantages

This precision O-ring offers:

• excellent fit in micro applications
• stable sealing under dynamic conditions
• high resistance to wear
• versatility across industrial uses

In the O-rings NBR category, this model is dedicated to applications where standard larger seals cannot be used due to size limitations.

Main description

O-ring 3,68x1,78 NBR 70 ShA is a precision sealing ring designed for small mechanical, hydraulic and pneumatic systems, ensuring high sealing efficiency and resistance to oils and wear.

This model is engineered for applications requiring tight tolerances and consistent performance, especially in compact assemblies. The 3,68x1,78 mm dimension belongs to the micro O-ring range, widely used in advanced industrial and technical systems.

In industrial sealing technology, NBR O-rings are a standard solution for oil-based environments, and this size provides reliable operation even under frequent pressure changes and repetitive cycles.

The pack of 100 pieces makes it an efficient solution for B2B customers involved in maintenance, repair and production processes requiring precision components.

FAQ

Is this O-ring suitable for precision valves?

Yes, its small size and high accuracy make it ideal for precision components.

Can it be used in hydraulic systems?

Yes, NBR material is compatible with hydraulic oils and ensures reliable sealing.

Is 3,68x1,78 mm a standard size?

Yes, it is commonly used in small-scale industrial applications.

Why choose a 100 pcs pack?

It ensures cost efficiency and continuous availability for production and maintenance.