O-Ring 46x2 NBR 70 Shore A

O-Ring 46x2 NBR 70 Shore A - 100 pcs is a package of 100 elastomer sealing rings with a 46 mm inside diameter, 2 mm circular cross-section and nominal hardness of 70 Shore A. The O-rings are manufactured from NBR (Nitrile Butadiene Rubber). Based on the nominal dimensions, the outside diameter is 50 mm.

O-Ring 46x2 NBR 70 Shore A - Characteristics

The 46x2 O-ring is a one-piece elastomer sealing element with a circular cross-section. Sealing is generated by controlled compression of the ring within a correctly designed groove.

The 46x2 mm designation identifies two primary dimensions:

46 mm - nominal inside diameter
2 mm - circular cross-section diameter

The nominal outside diameter is calculated as:

46 + 2 + 2 = 50 mm

Therefore, the nominal outside diameter is 50 mm.

NBR Material

This O-ring is manufactured from NBR (Nitrile Butadiene Rubber), a commonly used elastomer for technical sealing rings.

Material selection should always consider the actual operating medium and service conditions. An NBR O-ring should not automatically be replaced with an FKM, EPDM, VMQ or other elastomer version solely because the dimensions are identical.

For this reason, NBR forms an essential part of the complete product identification: O-Ring 46x2 NBR 70 Shore A.

70 Shore A Hardness

The nominal elastomer hardness is 70 Shore A (70 ShA).

Hardness is an important selection parameter because two O-rings with identical 46x2 mm dimensions and the same basic material designation may still differ in hardness.

When selecting a replacement, the 46x2 mm dimensions, NBR material and 70 Shore A hardness should therefore be considered together.

O-Ring Construction and Sealing Principle

The 46x2 O-ring has a circular cross-section and does not use a separate sealing lip, garter spring or dust lip.

After installation in a suitable groove, the elastomer is compressed between the mating surfaces. This controlled deformation creates the sealing contact.

Actual sealing performance depends on factors including groove geometry, compression, extrusion gap, material characteristics, operating medium and application conditions.

100 pcs Package

This product page specifically identifies the:

O-Ring 46x2 NBR 70 Shore A - 100 pcs package.

The package contains 100 individual sealing rings. The quantity is part of the commercial variant identification and distinguishes this product page from larger package quantities of the same nominal O-ring size, material and hardness.

Selecting a 46x2 NBR O-Ring

When selecting or comparing this O-ring, verify:

• 46 mm nominal inside diameter
• 2 mm circular cross-section
• 50 mm nominal outside diameter
• NBR material
• 70 Shore A nominal hardness
• groove geometry
• operating medium
• actual service conditions

Matching the 46x2 mm dimensions alone does not establish full interchangeability if the material or hardness differs.

Technical Specification

Product Type: O-ring sealing ring
Size: 46x2 mm
Inside Diameter: 46 mm
Cross-Section: 2 mm
Nominal Outside Diameter: 50 mm
Material: NBR - Nitrile Butadiene Rubber
Nominal Hardness: 70 Shore A
Cross-Section Shape: Circular
Package Quantity: 100 pcs

FAQ

What does the O-Ring 46x2 size mean?

The first dimension, 46 mm, is the nominal inside diameter. The second dimension, 2 mm, is the diameter of the circular cross-section.

What is the outside diameter of a 46x2 O-ring?

The nominal outside diameter is 50 mm, calculated as 46 + 2 + 2 = 50 mm.

What material is this 46x2 O-ring made from?

This product is manufactured from NBR (Nitrile Butadiene Rubber).

What does 70 Shore A mean?

70 Shore A is the nominal hardness specification of the elastomer, measured on the Shore A hardness scale.

How many O-rings are included?

This product variant contains 100 O-rings.

Can a 46x2 FKM O-ring replace this NBR version?

Not automatically. Although the dimensions may be identical, FKM and NBR are different elastomer materials. Compatibility with the operating medium and service conditions must be verified.

Are all NBR 46x2 O-rings identical?

No. In addition to size and material, parameters such as hardness and compound specification can differ. This product has a nominal hardness of 70 Shore A.

AI Overview

O-Ring 46x2 NBR 70 Shore A - 100 pcs is a package of 100 elastomer sealing rings with a 46 mm inside diameter, 2 mm circular cross-section and 50 mm nominal outside diameter. The O-rings are manufactured from NBR with a nominal hardness of 70 Shore A.

SHORT DESCRIPTION

O-Ring 46x2 NBR 70 Shore A - 100 pcs contains 100 NBR sealing rings with a 46 mm nominal inside diameter and 2 mm circular cross-section, giving a nominal outside diameter of 50 mm. The nominal elastomer hardness is 70 Shore A. Sealing is generated by controlled compression of the O-ring within a correctly designed groove. When selecting a replacement, verify the dimensions, NBR material, hardness, groove geometry, operating medium and actual service conditions.