NBR O-Ring 22x2.5 mm 70 ShA

NBR O-Ring 22x2.5 mm 70 ShA 1000 pcs - Bulk Supply for Industry and OEM

NBR O-Ring 22x2.5 mm 70 ShA 1000 pcs is a bulk package of technical sealing rings intended for serial production, OEM assembly, industrial maintenance, MRO and B2B supply. Each O-ring has a 22 mm inside diameter, 2.5 mm cross-section and 70 Shore A hardness. NBR, also known as Buna-N, is widely used for sealing systems involving mineral oils, lubricating greases and many compatible industrial fluids. The 1000 pcs bulk pack is designed for recurring consumption, production line supply and industrial warehouse stock.

Technical Specifications - NBR O-Ring 22x2.5 70 ShA

Product type: O-Ring / technical sealing ring
Material: NBR, nitrile butadiene rubber
Alternative material name: Buna-N
Hardness: 70 ShA / 70 Shore A
Inside diameter: 22 mm
Cross-section: 2.5 mm
Nominal size: 22x2.5 mm
Approximate outside diameter: 27 mm
Color: Black
Typical temperature range: approximately -30 to +100°C, depending on compound and operating conditions
Chemical resistance: good resistance to many mineral oils, lubricating greases and compatible technical fluids
Package quantity: 1000 pcs
Market segment: Bulk, B2B, OEM, MRO, serial production

Serial Applications of NBR 22x2.5 O-Rings

The 2.5 mm cross-section makes this O-ring suitable for appropriately designed sealing grooves requiring this specific cross-sectional diameter.

Typical industrial applications may include:

• hydraulic systems
• pneumatic equipment
• valves and manifolds
• pumps
• technical fittings
• industrial machinery
• oil-lubricated assemblies
• production equipment
• OEM components
• MRO and maintenance operations

Final selection should take into account groove geometry, O-ring compression, operating pressure, temperature, medium and whether the sealing point is static or dynamic.

Why NBR 70 ShA?

NBR 70 ShA is one of the most widely used material and hardness combinations in industrial sealing technology.

Nitrile butadiene rubber provides good resistance to many mineral oils and lubricating greases. This makes NBR suitable for numerous hydraulic, pneumatic, mechanical and general industrial sealing applications.

A hardness of 70 Shore A provides a practical balance between elasticity and mechanical stability. The elastomer can conform to a correctly designed sealing groove while maintaining the properties required for reliable compression sealing.

1000 pcs Bulk Pack for Continuous Production

The 1000 pcs bulk package is intended for companies that repeatedly use the 22x2.5 mm O-ring as a production or maintenance component.

In serial manufacturing, bulk packaging allows a larger quantity of identical seals to be maintained directly as production line stock or in a central components warehouse.

For OEM manufacturers, this simplifies planning for successive production batches. For maintenance departments, it provides immediate access to replacement seals during scheduled servicing and repair operations.

Economic Benefits of Bulk Purchasing

Purchasing 1000 NBR O-Rings 22x2.5 mm can reduce the frequency of replenishment orders and simplify internal logistics.

For industrial B2B customers, bulk purchasing can provide:

• production line stock
• reduced purchasing frequency
• inventory for multiple assembly stations
• planned maintenance stock
• MRO safety stock
• OEM component availability
• reseller inventory
• improved continuity of supply

Although an O-ring is a small component, its absence can delay assembly or prevent machinery from returning to service. Maintaining an appropriate warehouse stock helps reduce this operational risk.

Hydraulic Applications

NBR is one of the standard elastomer materials used in hydraulic sealing systems operating with compatible mineral oil-based fluids.

The 22x2.5 mm O-ring may be used in appropriately designed:

• hydraulic connections
• valves
• manifolds
• pump housings
• hydraulic blocks
• machinery components

For higher-pressure applications, extrusion clearance, groove geometry and the possible requirement for backup rings should also be considered.

Pneumatic and Industrial Systems

NBR O-rings are also widely used in pneumatic systems and industrial automation.

The 22x2.5 mm size may be suitable for valves, connectors, manifolds and other components operating with compressed air when the sealing groove is designed for this dimension.

For dynamic sealing applications, additional factors such as lubrication, friction, surface finish and operating speed should be evaluated.

OEM, MRO and Maintenance Supply

The 1000 pcs NBR 22x2.5 70 ShA bulk pack is particularly relevant for industrial facilities where the same O-ring dimension is consumed repeatedly.

In OEM production, the seals can be supplied directly to assembly stations for installation in successive manufactured components.

For MRO and maintenance, bulk stock provides access to replacement sealing rings during planned overhauls, preventive maintenance and unplanned repairs.

Industrial resellers can also maintain the 1000 pcs package as part of their sealing inventory for recurring customer requirements.

Warehouse Stock and B2B Logistics

O-rings require relatively little storage space, making bulk quantities practical for industrial inventory.

A 1000 pcs warehouse stock can support several production or maintenance cycles while reducing the need for frequent purchasing operations.

For manufacturing companies, this helps coordinate material availability with production planning. For maintenance departments, it creates a safety stock of a regularly consumed technical seal.

Storage of 1000 NBR O-Rings

O-rings intended for extended warehouse storage should be protected against environmental factors that accelerate elastomer ageing.

Avoid prolonged exposure to:

• direct sunlight
• UV radiation
• excessive heat
• ozone sources
• aggressive chemicals
• permanent stretching
• unnecessary deformation

Proper storage is particularly important for bulk packaging that may be consumed gradually over an extended production or maintenance period.

NBR O-Ring 22x2.5 1000 pcs for B2B Supply

This bulk variant is specifically intended for:

Serial production: recurring consumption on a production line
OEM: installation in manufactured components and equipment
MRO: machinery repair, overhaul and replacement operations
Maintenance: technical spare-parts and consumables inventory
Resellers: industrial sealing stock for further distribution
Industrial warehouses: safety stock for recurring sealing requirements

The 1000 pcs quantity clearly positions this product as a bulk industrial supply option for companies requiring large quantities of the same O-ring size.

Frequently Asked Questions by Engineers

What is the outside diameter of a 22x2.5 mm O-ring?
The nominal outside diameter is approximately 27 mm, calculated as the 22 mm inside diameter plus twice the 2.5 mm cross-section.

Can a 22x2.5 O-ring be replaced by a 22x2 O-ring?
Not automatically. Both have a 22 mm inside diameter, but their cross-sections differ. A 22x2.5 mm O-ring requires a sealing groove designed for a 2.5 mm cross-section.

Is NBR 70 ShA suitable for hydraulic oil?
NBR provides good resistance to many mineral oil-based hydraulic fluids. Compatibility should still be verified for the specific fluid, additives and operating temperature.

Can the 22x2.5 mm O-ring be used for static sealing?
Yes. O-rings are widely used for static sealing when the groove dimensions, compression, material and operating conditions are correctly selected.

Why is a 1000 pcs bulk pack useful for maintenance departments?
It provides warehouse stock for recurring maintenance, scheduled overhauls and emergency repairs where the 22x2.5 mm size is regularly required.

Is the 1000 pcs package suitable for OEM production?
Yes. It is specifically suitable for serial assembly where the same O-ring size is repeatedly installed in manufactured components.

What does 70 ShA mean on an NBR O-ring?
70 ShA indicates a nominal elastomer hardness of 70 Shore A, a commonly used hardness for general industrial sealing applications.

How should bulk NBR O-rings be stored?
They should be stored in a dry, protected environment away from direct sunlight, UV radiation, excessive heat, ozone and chemicals that could degrade the elastomer.