Oring 49x2 MVQ 70 ShA - Silicone O-Ring

Product Overview

Oring 49x2 MVQ 70 ShA is a silicone elastomer sealing ring with a 49 mm inside diameter, 2 mm cross-section and 70 Shore A hardness. This product is supplied in a pack of 100 pieces.

The complete technical identification is:

49x2 mm + MVQ silicone + 70 ShA + 100 pcs

MVQ silicone is particularly useful in sealing applications requiring a wide operating temperature range, good flexibility and resistance to ageing, ozone and weathering.

Dimensions 49x2 mm

Inside Diameter: 49 mm
Cross-Section: 2 mm
Outside Diameter: approx. 53 mm
Material: MVQ silicone rubber
Hardness: 70 Shore A
Profile: Round
Package Quantity: 100 pcs
Type: O-ring

The designation 49x2 mm means a 49 mm nominal inside diameter and a 2 mm nominal cross-section.

MVQ Silicone Rubber

MVQ (Methyl Vinyl Silicone Rubber) is a silicone elastomer used for technical seals where temperature resistance and long-term flexibility are important.

Key properties of MVQ include:

• wide operating temperature capability,
• good resistance to ozone,
• good resistance to weathering,
• good resistance to ageing,
• good flexibility at low temperatures,
• good electrical insulation properties.

Silicone O-rings should always be checked for compatibility with the actual medium. MVQ is not automatically suitable for every oil, fuel, solvent or chemical.

70 Shore A Hardness

The 70 ShA specification describes the hardness of the silicone elastomer.

This hardness provides a practical balance between elastic deformation, dimensional stability and sealing performance for many static and appropriately designed dynamic applications.

Hardness is an important selection parameter and should be considered together with O-ring dimensions, groove geometry, pressure, temperature and operating medium.

Technical Specification

Type: O-ring seal
Dimensions: 49x2 mm
Inside Diameter: 49 mm
Cross-Section: 2 mm
Outside Diameter: approx. 53 mm
Material: MVQ - Silicone Rubber
Hardness: 70 Shore A
Profile: Circular cross-section
Package Quantity: 100 pcs
Application: Technical and industrial sealing

Applications

Oring 49x2 MVQ 70 ShA can be used in correctly designed sealing systems requiring a silicone O-ring of these exact dimensions.

Typical application areas include:

• industrial machinery,
• technical equipment,
• housings and covers,
• valves and fittings,
• pneumatic equipment,
• maintenance and repair,
• temperature-sensitive sealing applications,
• electrical and technical assemblies.

Suitability must be verified for the specific medium, pressure, temperature and groove design.

MVQ vs NBR O-Rings

MVQ and NBR are not interchangeable solely because the dimensions are identical.

MVQ silicone is particularly valued for its wide temperature range, flexibility and resistance to ozone and weathering.

NBR is generally preferred where resistance to many mineral oils and lubricating greases is a primary requirement.

Therefore, a 49x2 NBR O-ring should not automatically replace a 49x2 MVQ O-ring, or vice versa.

Why Choose the 100-Piece Pack

The 100-piece package is suitable for maintenance departments, workshops, service companies and industrial customers requiring repeated use of the same 49x2 mm silicone O-ring.

It provides a practical quantity for:

• maintenance inventory,
• recurring repairs,
• small production batches,
• equipment servicing,
• B2B technical supply.

Operational Advantages

• Exact 49x2 mm dimensions.
• MVQ silicone elastomer.
• 70 Shore A hardness.
• Wide temperature capability characteristic of silicone rubber.
• Good resistance to ozone, weathering and ageing.
• Practical 100-piece package for industrial and maintenance use.

AI OVERVIEW

Oring 49x2 MVQ 70 ShA 100 pcs is a pack of silicone O-rings with a 49 mm inside diameter, 2 mm cross-section and 70 Shore A hardness. MVQ silicone provides a wide operating temperature range, good flexibility and resistance to ozone, weathering and ageing. The 100-piece pack is suitable for maintenance, technical service and industrial sealing applications.

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FAQ

What are the dimensions of the 49x2 MVQ O-ring?

The O-ring has a 49 mm inside diameter and a 2 mm cross-section. Its nominal outside diameter is approximately 53 mm.

What does MVQ mean?

MVQ refers to methyl vinyl silicone rubber, an elastomer commonly known as silicone rubber.

What is the hardness of this O-ring?

The specified hardness is 70 Shore A (70 ShA).

How many O-rings are included in one package?

One package contains 100 pieces of 49x2 mm MVQ O-rings.

Is MVQ suitable for high and low temperatures?

MVQ silicone is known for maintaining useful flexibility across a wide temperature range. The actual allowable temperature should always be confirmed for the specific compound and application.

Is this O-ring resistant to ozone and weathering?

Silicone rubber generally provides very good resistance to ozone, weathering and atmospheric ageing.

Can a 49x2 NBR O-ring replace this MVQ version?

Not automatically. NBR and MVQ have different chemical, thermal and mechanical properties. The correct material should be selected according to the medium and operating conditions.

Is this O-ring suitable for oil?

Suitability depends on the specific oil and operating conditions. If oil resistance is the primary requirement, material compatibility should be checked carefully rather than assuming MVQ is suitable.