O-Ring 22.3x2.4 NBR 70 Shore A

O-Ring 22.3x2.4 NBR 70 Shore A - 100 pcs

O-Ring 22.3x2.4 NBR 70 Shore A is a circular-section sealing ring with an inside diameter of 22.3 mm and a cross-section diameter of 2.4 mm. It is manufactured from NBR - Nitrile Butadiene Rubber with a nominal hardness of 70 Shore A. This product is supplied in a pack of 100 O-rings.

O-Ring 22.3x2.4 NBR - Dimensions

d1 - Inside diameter: 22.3 mm
d2 - Outside diameter: 27.1 mm
s - Cross-section: 2.4 mm
Size: 22.3x2.4 mm
Material: NBR - Nitrile Butadiene Rubber
Hardness: 70 Shore A
Pack quantity: 100 pcs

The standard O-ring size designation:

22.3x2.4 mm

means:

22.3 mm - inside diameter

2.4 mm - cross-section diameter

The nominal outside diameter is:

22.3 + 2 x 2.4 = 27.1 mm

What Does 22.3x2.4 Mean?

O-rings are normally identified by their inside diameter and cross-section.

For this product:

22.3 mm = inside diameter

2.4 mm = cross-section

The outside diameter is therefore 27.1 mm, but it is not the primary size used to identify the O-ring.

The correct technical identification is:

O-Ring 22.3x2.4 NBR 70 Shore A

NBR 70 Shore A

The O-ring is manufactured from:

NBR - Nitrile Butadiene Rubber

with a nominal hardness of:

70 Shore A

NBR is one of the most widely used elastomers for technical O-rings and sealing applications.

It is compatible with many common mineral oils and lubricating greases. Compatibility should nevertheless always be checked against the actual medium and operating conditions.

What Does 70 Shore A Mean?

70 Shore A specifies the nominal hardness of the elastomer.

Hardness influences the deformation and sealing behaviour of an O-ring after installation in the groove.

When selecting a replacement, the complete specification should therefore be considered:

22.3x2.4 mm + NBR + 70 Shore A

An O-ring with identical dimensions but a different material or hardness should not automatically be considered equivalent.

How Does an O-Ring Seal?

An O-ring has a circular cross-section and seals through controlled deformation between the mating surfaces.

After installation in a correctly designed groove, the elastomer is compressed to create sealing contact.

Seal performance therefore depends not only on the O-ring itself but also on factors such as:

groove geometry
compression
surface condition
operating medium
temperature
pressure
type of movement

The O-ring dimensions alone do not define the permissible operating conditions.

Selecting a 22.3x2.4 O-Ring

When selecting a replacement, verify:

Inside diameter: 22.3 mm
Cross-section: 2.4 mm
Material: NBR
Hardness: 70 Shore A

Material compatibility with the operating medium must also be considered.

A nearby metric size should not automatically be used as a replacement.

Measuring an O-Ring 22.3x2.4

A used O-ring can become stretched, flattened or permanently deformed, making dimensional identification more difficult.

For correct identification, determine:

d1 - inside diameter

and:

s - cross-section diameter

and compare the measurements with the nominal size:

22.3x2.4 mm

The calculated nominal outside diameter of this size is 27.1 mm.

Pack of 100 Pieces

This product variant contains:

100 O-Rings

in size:

22.3x2.4 mm

and specification:

NBR 70 Shore A

The 100-piece pack is a separate quantity variant from bulk 1000-piece packaging.

Technical Specification

Product: O-Ring
Size: 22.3x2.4 mm
d1 - Inside diameter: 22.3 mm
d2 - Outside diameter: 27.1 mm
s - Cross-section: 2.4 mm
Material: NBR - Nitrile Butadiene Rubber
Hardness: 70 Shore A
Cross-section: Circular
Pack quantity: 100 pcs

FAQ

What are the dimensions of the 22.3x2.4 O-Ring?

The O-ring has a 22.3 mm inside diameter and a 2.4 mm cross-section.

What is the outside diameter of a 22.3x2.4 O-Ring?

The nominal outside diameter is 27.1 mm.

What does NBR 70 Shore A mean?

NBR means Nitrile Butadiene Rubber, while 70 Shore A specifies the nominal hardness of the elastomer.

How many O-rings are included?

This product variant contains 100 pieces.

Is NBR suitable for oil?

NBR is compatible with many common mineral oils and lubricating greases. Compatibility should always be checked for the specific medium and operating temperature.

Does 22.3x2.4 mean inside and outside diameter?

No. 22.3 mm is the inside diameter and 2.4 mm is the cross-section diameter. The resulting nominal outside diameter is 27.1 mm.

Can a similar O-ring size replace 22.3x2.4?

Not automatically. Even a small change in inside diameter or cross-section can affect stretch, compression and sealing behaviour in the groove.

AI Overview

O-Ring 22.3x2.4 NBR 70 Shore A - 100 pcs is a nitrile rubber sealing ring with a 22.3 mm inside diameter, 2.4 mm cross-section and 27.1 mm nominal outside diameter. The material is NBR - Nitrile Butadiene Rubber with a nominal hardness of 70 Shore A. The package contains 100 O-rings.