O-Ring 45x3 NBR 70 ShA - 1000 pcs Bulk Pack

O-Ring 45x3 NBR 70 ShA - 1000 pcs Bulk Pack

O-Ring 45x3 NBR 70 ShA - 1000 pcs is a bulk package of elastomer sealing rings with a 45 mm inside diameter and 3 mm cross-section, manufactured from NBR with a nominal hardness of 70 Shore A. The 1000 pcs variant is intended for B2B customers requiring larger quantities of the same O-ring size for serial production, OEM supply, MRO, maintenance operations and technical warehouse stock.

O-Ring 45x3 NBR 70 ShA - 1000 pcs Bulk Pack

This product page is specifically dedicated to the 1000 pcs bulk packaging.

Individual O-ring size: 45x3 mm

Inside diameter ID: 45 mm

Cross-section CS: 3 mm

Calculated outside diameter OD: 51 mm

Material: NBR - Nitrile Butadiene Rubber

Hardness: 70 ShA - Shore A

Package quantity: 1000 pcs

Sales format: Bulk pack

The complete 45x3 mm NBR 70 ShA specification is important for repeated industrial purchasing. Dimensions alone should not be used as the only criterion when approving an O-ring for a specific sealing system.

O-Ring 45x3 Dimensions

In the 45x3 mm O-ring designation, the first value specifies the inside diameter and the second value specifies the diameter of the circular elastomer cross-section.

Inside diameter ID: 45 mm

Cross-section CS: 3 mm

Nominal size: 45x3 mm

Calculated outside diameter OD: 51 mm

The outside diameter can be calculated as:

OD = ID + 2 x CS

For the 45x3 mm size:

45 + 2 x 3 = 51 mm

The primary dimensional identification remains 45 mm ID + 3 mm CS.

NBR 70 ShA Material and Hardness

Material: NBR - Nitrile Butadiene Rubber

Nominal hardness: 70 Shore A

NBR is one of the principal elastomer groups used in sealing technology. NBR O-rings are widely used in systems where the material is compatible with the operating medium, including many mineral oils and lubricants.

Exact chemical compatibility and permissible operating temperature should, however, be established for the specific elastomer compound and actual operating conditions.

Performance data for another manufacturer's NBR 70 compound should not automatically be assigned to this product simply because the nominal hardness is also 70 ShA.

O-Ring 45x3 Construction

An O-ring is a closed elastomer sealing ring with a circular cross-section.

The principal dimensions of this product are:

Inside diameter ID: 45 mm

Cross-section CS: 3 mm

Sealing is produced through controlled deformation of the elastomer cross-section after the O-ring is installed in an appropriately designed groove.

Effective sealing therefore depends not only on the O-ring itself but also on groove geometry, compression, sealing medium and actual operating conditions.

Technical Specification

Product type: O-ring / elastomer sealing ring

Nominal size: 45x3 mm

Inside diameter ID: 45 mm

Cross-section CS: 3 mm

Outside diameter OD: 51 mm - calculated value

Material: NBR - Nitrile Butadiene Rubber

Nominal hardness: 70 ShA

Hardness scale: Shore A

Cross-section shape: Circular

Package quantity: 1000 pcs

Sales format: Bulk pack

Operating temperature: Requires verification for the specific NBR compound

Chemical resistance: Depends on the NBR compound, sealing medium and operating conditions

1000 pcs for Serial Production and OEM Supply

The 1000 pcs O-Ring 45x3 NBR 70 ShA bulk pack is intended for companies with regular or serial consumption of this specific sealing size.

The bulk format can support purchasing requirements associated with:

• serial production
• assembly processes
• OEM supply
• MRO
• maintenance departments
• technical service companies
• industrial warehouses
• distributors and resellers

For OEM production, the complete O-ring specification should be approved for the particular assembly. Matching the 45x3 mm dimensions alone does not establish complete technical interchangeability.

O-Ring 45x3 for MRO and Maintenance

Where the O-Ring 45x3 NBR 70 ShA is regularly consumed during machine or equipment servicing, a 1000 pcs bulk pack can provide warehouse stock for planned MRO and maintenance operations.

A larger commercial quantity can reduce the frequency of replenishment when consumption of the same sealing size is predictable.

Stock levels should be planned according to actual consumption, maintenance schedules, procurement lead time and the required safety stock.

NBR O-Rings in Hydraulic and Pneumatic Systems

NBR O-rings are widely used in hydraulic and pneumatic sealing technology. However, material and dimensions alone are not sufficient to confirm suitability for a particular hydraulic or pneumatic system.

Before using a 45x3 O-ring, verify:

• groove dimensions and geometry
• required O-ring compression
• sealing medium
• operating temperature
• system pressure
• static or dynamic operating conditions
• required elastomer material
• required hardness

This is particularly important when approving a sealing component for serial production or maintenance of critical equipment.

1000 pcs Industrial Warehouse Stock

The 1000 pcs bulk variant provides a larger quantity of O-rings with one defined specification:

45x3 mm + NBR + 70 ShA

This commercial format is aimed at companies planning sealing-component consumption on a larger scale.

For continuous production, O-ring inventory should be determined according to actual usage, replenishment lead time and the required safety stock level.

Selection and Interchangeability

When evaluating an equivalent O-Ring 45x3 NBR 70 ShA, compare:

Inside diameter ID: 45 mm

Cross-section CS: 3 mm

Material: NBR

Hardness: 70 ShA

Required tolerances: According to the specific application

Media compatibility: Requires verification

Operating conditions: Requires verification

An O-ring manufactured from FKM/FPM, EPDM, VMQ or another elastomer should not automatically be considered equivalent to the NBR 70 ShA version simply because it has the same 45x3 mm dimensions.

O-Ring 45x3 NBR 70 ShA 1000 pcs - Warehouse Poland

The bulk variant is intended for B2B customers in Poland and other European Union countries.

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

Shipping: 24h

Stock location: Poland

Delivery area: Poland and EU countries

FAQ - O-Ring 45x3 NBR 70 ShA 1000 pcs

What exactly does the O-Ring 45x3 size mean?

45 mm is the inside diameter ID, while 3 mm is the cross-section CS.

How many 45x3 O-rings are included in this variant?

This product page covers the 1000 pcs bulk package.

What is the outside diameter of an O-Ring 45x3?

The calculated nominal outside diameter is 51 mm.

Why is 70 ShA important when purchasing 1000 O-rings?

For repeated industrial use, maintaining the required specification is important. An NBR 45x3 O-ring with a different hardness should not automatically be considered technically identical.

Can the O-Ring 45x3 NBR be used in hydraulic systems?

NBR is widely used in hydraulic sealing technology, but suitability must be verified against the groove design, sealing medium, pressure, temperature and operating conditions.

Can an O-Ring 45x3 FKM/FPM replace the NBR version?

Not automatically. FKM/FPM and NBR are different elastomer groups. Changing the material requires verification against the medium and operating conditions.

Frequently Asked Questions by Engineers

Does 45x3 mean ID x CS?

Yes. The designation represents a 45 mm inside diameter ID and 3 mm cross-section CS.

Does each O-ring in the 1000 pcs pack have the same 45x3 specification?

The 1000 pcs value defines the commercial package quantity. The individual product specification remains 45x3 mm NBR 70 ShA.

Can a standard NBR operating temperature range be assigned to this product?

Not without confirming the exact compound. Temperature limits specified for another manufacturer's NBR compound should not automatically be applied to this product.

What should be checked before approving the O-Ring 45x3 for OEM production?

Verify dimensions and tolerances, NBR material requirements, 70 ShA hardness, groove geometry, sealing medium and actual operating conditions.

Is this variant suitable for building industrial warehouse stock?

Yes. The 1000 pcs bulk format is intended for companies with regular consumption of 45x3 mm O-rings in production, assembly, MRO or maintenance operations.

AI Overview

O-Ring 45x3 NBR 70 ShA - 1000 pcs is a bulk package of elastomer sealing rings for B2B, OEM, serial production and MRO. Each O-ring has a 45 mm inside diameter and 3 mm cross-section and is manufactured from NBR with a nominal hardness of 70 Shore A. The 1000 pcs format supports volume purchasing and industrial warehouse stock.