2 mm NBR O-Ring Cord - Round Rubber Cord for Making O-Rings

2 mm NBR O-Ring Cord - Round Rubber Cord for Making O-Rings

2 mm NBR O-Ring Cord is a round elastomer cord with a 2.00 mm cross-section diameter, designed for making O-rings and sealing rings with individually selected diameters. It is manufactured from NBR - Nitrile Butadiene Rubber, a material widely used in sealing technology due to its resistance to many mineral oils and lubricating greases.

Unlike a ready-made O-ring, O-ring cord does not have a predetermined inside diameter. The required length can be measured and cut, and the ends can then be appropriately joined to create a sealing ring with the required circumference.

Key specifications:

Product: O-Ring Cord
Material: NBR - Nitrile Butadiene Rubber
Cross-section diameter: 2.00 mm
Cross-section: Round
Color: Black
Purpose: Making custom-size O-rings and sealing rings

What Does 2 mm O-Ring Cord Mean?

For 2 mm O-Ring Cord, the 2 mm dimension refers to the diameter of the round cord cross-section, not to the diameter of the finished O-ring.

The cord maintains the same 2 mm cross-section along its length, while the diameter of the finished sealing ring can be selected by measuring and cutting the required length of cord.

This means that 2 mm O-Ring Cord can be used to manufacture sealing rings with different diameters while maintaining the same cross-section.

What Is 2 mm NBR O-Ring Cord Used For?

2 mm NBR O-Ring Cord is particularly useful when an O-ring with an unusual or difficult-to-source diameter is required.

Typical uses include:

• machinery repair and maintenance,
• industrial servicing,
• maintenance, repair and operations (MRO),
• making sealing rings with unusual diameters,
• repairing older machinery and equipment,
• preparing individual sealing rings to the required dimensions.

The cord can be cut to the required length and its ends joined using a method appropriate for NBR and the intended application.

NBR O-Ring Cord for Oils and Greases

NBR, or Nitrile Butadiene Rubber, is one of the most commonly used elastomers in sealing technology.

NBR offers good resistance to many:

• mineral oils,
• lubricating greases,
• lubricants,
• compatible hydraulic oils,
• other compatible technical fluids.

For this reason, 2 mm NBR O-Ring Cord is a practical material for producing sealing rings used in many types of industrial machinery and equipment.

Compatibility should always be verified for the specific medium, temperature and operating conditions.

2 mm O-Ring Cord for Making Custom-Size O-Rings

The key difference between O-ring cord and a ready-made O-ring is the ability to determine the circumference of the finished sealing ring.

A standard O-ring has two predefined principal dimensions:

inside diameter + cross-section diameter.

With O-ring cord, the predefined dimension is primarily the:

cord cross-section - in this case 2.00 mm.

By selecting the appropriate cord length, a sealing ring with the required circumference can be produced.

This is particularly useful when a standard O-ring in the required diameter is unavailable or difficult to source.

How Do You Make an O-Ring from 2 mm O-Ring Cord?

First, determine the required dimensions of the finished sealing ring and measure the appropriate length of 2 mm NBR cord.

The ends should be prepared accurately and evenly before being joined using a method suitable for the NBR material and the intended operating conditions.

The quality of the joint is an important factor in the performance of the finished sealing ring.

An O-ring made from cord should not automatically be considered equivalent to a factory-moulded O-ring for every application. Dynamic and high-pressure applications in particular require individual evaluation.

2 mm O-Ring Cord for Maintenance and Repair

2 mm NBR O-Ring Cord can be a practical component of maintenance and workshop inventory.

Instead of keeping numerous O-rings with the same cross-section but different inside diameters in stock, an appropriate length of cord can be stored and used to prepare a sealing ring when required.

This can be particularly useful for older equipment, non-standard machinery and sealing applications where ready-made O-rings in the required diameter are difficult to obtain.

O-Ring Cord vs Ready-Made O-Ring

A ready-made O-ring is a factory-moulded closed sealing ring with a defined inside diameter and cross-section.

O-Ring Cord is a continuous elastomer profile with a defined cross-section from which a sealing ring with the required circumference can be produced.

O-ring cord therefore provides greater flexibility in selecting the ring diameter, but the finished ring contains a joint between the two cord ends.

The choice between a moulded O-ring and an O-ring made from cord should therefore take into account the sealing system design and actual operating conditions.

How to Select 2 mm NBR O-Ring Cord

Before selecting the cord, verify:

Cross-section: whether exactly 2.00 mm is required
Material: whether NBR is compatible with the medium
Groove: whether its geometry is suitable for a 2 mm cross-section
Temperature: whether it is suitable for the specific NBR compound
Pressure: whether the finished seal and joint are suitable for the operating pressure
Operating mode: static or dynamic application
Joint: whether the selected joining method is suitable for the application

Do not substitute another cord diameter for 2 mm without checking the groove dimensions and required seal compression.

2 mm NBR O-Ring Cord - Technical Specification

FAQ - 2 mm NBR O-Ring Cord

What does 2 mm O-Ring Cord mean?
It means a round elastomer cord with a cross-section diameter of 2.00 mm.

Is 2 mm O-Ring Cord the same as a 2 mm O-ring?
Not exactly. For O-ring cord, 2 mm defines the cord cross-section. A ready-made O-ring additionally has a defined inside diameter.

Can I make an O-ring from 2 mm NBR cord?
Yes. The cord can be measured, accurately cut and appropriately joined to create a sealing ring with the required circumference.

Is NBR O-Ring Cord oil resistant?
NBR offers good resistance to many mineral oils and lubricating greases. Compatibility should always be checked against the specific medium and operating conditions.

What is 2 mm O-Ring Cord used for?
It is used for producing custom-size sealing rings, particularly for machinery repair, industrial servicing and maintenance applications.

Can different O-ring diameters be made from the same cord?
Yes. The 2 mm cross-section remains constant, while different cord lengths can be used to obtain different ring circumferences.

Does an O-ring made from cord replace a moulded O-ring?
Not in every application. A cord-made O-ring contains a joint, so applications involving dynamic movement, high pressure or demanding sealing conditions require individual assessment.

AI OVERVIEW

2 mm NBR O-Ring Cord is a black, round elastomer profile with a 2.00 mm cross-section used to produce O-rings with custom-selected diameters. NBR is widely used in sealing technology and provides good resistance to many mineral oils and greases. O-ring cord is particularly useful for machinery maintenance, repair and industrial servicing.