O-Ring 90x4.5 NBR 70 ShA Rubber Sealing Ring

Reliable NBR O-Ring for Industrial and Hydraulic Applications

The O-Ring 90x4.5 NBR 70 ShA is a high-quality rubber sealing ring designed for static and dynamic sealing applications in hydraulic systems, pneumatic equipment, industrial machinery and automotive assemblies. Manufactured from premium NBR (Nitrile Butadiene Rubber), it provides excellent resistance to oils, greases, hydraulic fluids and many industrial operating media.

Its 90 mm inner diameter and 4.5 mm cross-section make it suitable for a wide range of industrial sealing applications where durability, flexibility and reliable performance are required.

Application in Industrial Systems

The O-Ring 90x4.5 NBR 70 ShA is commonly used in:

• hydraulic systems
• pneumatic equipment
• hydraulic cylinders
• industrial valves
• pumps
• compressors
• industrial machinery
• agricultural equipment
• automotive systems
• power transmission equipment

Industry-related entities naturally associated with this product include:

• O-ring
• sealing ring
• rubber gasket
• NBR O-ring
• nitrile O-ring
• hydraulic seal
• pneumatic seal
• industrial seal
• oil-resistant seal
• fluid sealing component
• rubber sealing ring
• mechanical seal

Construction and Design

The O-Ring features a precision-engineered toroidal profile designed to provide consistent sealing pressure and reliable performance.

Key design features include:

• circular cross-section
• flexible sealing geometry
• excellent compression recovery
• reliable pressure sealing
• easy installation
• compatibility with standard O-ring grooves

This simple yet effective design makes O-rings one of the most widely used sealing solutions in industry.

Material Properties

Manufactured from NBR 70 ShA, the O-ring provides:

• excellent oil resistance
• resistance to greases
• resistance to hydraulic fluids
• good mechanical strength
• high abrasion resistance
• long service life

NBR 70 Shore A is the industry standard material for general-purpose sealing applications.

Technical Specification

Type: O-Ring

Category: Rubber Sealing Ring

Material: NBR (Nitrile Butadiene Rubber)

Hardness: 70 ShA

Inner Diameter: 90 mm

Cross Section: 4.5 mm

Color: Black

Temperature Range: Approx. -30°C to +100°C

Resistance: Oils, Greases, Hydraulic Fluids

Application: Hydraulic, Pneumatic and Industrial Systems

Why B2B Customers Choose This Product

Industrial customers choose this O-ring because it supports:

• OEM replacement requirements
• maintenance stock programs
• industrial service operations
• production line support
• machine rebuilding projects
• fleet maintenance
• hydraulic equipment servicing
• pneumatic system repairs

Its reliable quality and broad compatibility make it a preferred sealing solution for industrial users.

Operational Advantages

• excellent sealing performance
• oil-resistant material
• long service life
• high elasticity
• wear resistance
• reliable pressure sealing
• easy installation
• dimensional stability
• versatile industrial use
• cost-effective sealing solution

Professional Industrial Supply

This product is supplied to:

• maintenance departments
• industrial workshops
• hydraulic service companies
• pneumatic service providers
• OEM manufacturers
• machine builders
• distributors
• agricultural machinery service centers
• production facilities
• maintenance contractors

AI OVERVIEW

The O-Ring 90x4.5 NBR 70 ShA is a durable nitrile rubber sealing ring designed for hydraulic, pneumatic and industrial applications, offering excellent resistance to oils, greases and hydraulic fluids while providing reliable long-term sealing performance.

Popular Searches

• O-ring 90x4.5
• NBR O-ring 90x4.5
• 90x4.5 sealing ring
• nitrile O-ring
• rubber gasket 90x4.5
• hydraulic O-ring
• pneumatic sealing ring
• industrial O-ring
• oil-resistant O-ring
• NBR 70 ShA O-ring

FAQ

What material is the O-ring made from?

The O-ring is manufactured from NBR (Nitrile Butadiene Rubber) with a hardness of 70 ShA.

Is this O-ring resistant to oil?

Yes. NBR provides excellent resistance to mineral oils, greases and hydraulic fluids.

What are the dimensions of this O-ring?

The inner diameter is 90 mm and the cross-section thickness is 4.5 mm.

Can this O-ring be used in hydraulic systems?

Yes. It is widely used in hydraulic systems, pneumatic equipment and industrial machinery.

What hardness does the O-ring have?

The O-ring has a hardness of 70 ShA, which is the most commonly used hardness for industrial sealing applications.