V-RING VA 10 NBR 9.5-11.5 mm - Axial Shaft Seal

V-RING VA 10 NBR 9.5-11.5 mm - Axial Rotary Shaft Seal

V-RING VA 10 NBR is an elastomeric axial shaft seal designed for shaft diameters of 9.5-11.5 mm. The standard VA profile features a flexible seal body and an integral axial sealing lip. Its nominal free-state inside diameter is 9 mm, cross-section height is 3 mm, and free-state axial width is 5.5 mm. NBR identifies nitrile butadiene rubber. The seal rotates with the shaft while its lip contacts a stationary axial counterface.

Technical Specifications - V-RING VA 10 NBR

These dimensions correspond to the standard VA 10 profile geometry. The manufacturer of the specific product has not been identified. Exact tolerances and permissible operating conditions should be confirmed against the technical documentation for the supplied seal.

What Does V-RING VA 10 NBR Mean?

V-RING - Axial Shaft Seal

A V-ring is a flexible elastomeric sealing ring installed directly onto a rotating shaft.

Its body rotates with the shaft, while the flexible sealing lip contacts a stationary axial surface.

Unlike a conventional radial shaft oil seal, a V-ring does not seal through lip contact with the cylindrical shaft surface.

Its primary purpose is to restrict external contaminants from entering the protected mechanical assembly.

VA - Standard Axial Sealing Profile

VA identifies the standard V-ring sealing profile.

The construction consists of an elastic body mounted on the shaft and an integral sealing lip.

The VA profile has a compact design and can be used in assemblies with limited installation space.

It should not be confused with the VS profile, which has a different cross-sectional geometry.

10 - Nominal Seal Size

The number 10 identifies the nominal seal size.

The standard VA 10 V-ring is designed for shaft diameters of 9.5-11.5 mm.

Its free-state inside diameter is 9 mm.

The difference between the uninstalled seal diameter and the shaft diameter allows the elastomeric body to stretch and grip the shaft during installation.

NBR - Nitrile Butadiene Rubber

NBR is a synthetic elastomer commonly used in industrial sealing applications.

It offers flexibility and resistance to many mineral oils and greases.

Its actual chemical and temperature resistance depends on the specific elastomer compound.

Construction and Operating Principle of V-RING VA 10 NBR

Elastomeric Seal Body

The seal body is manufactured from nitrile butadiene rubber.

Its nominal free-state inside diameter is 9 mm.

During installation onto a shaft measuring 9.5-11.5 mm in diameter, the elastomer stretches.

The resulting elastic tension helps retain the seal on the shaft during rotation.

Flexible Sealing Lip

The sealing lip is an integral part of the elastomeric ring.

When correctly installed, it contacts a stationary axial counterface.

This contact helps prevent dust, moisture and other contaminants from entering the protected area.

Axial Sealing Principle

The sealing lip operates against a surface perpendicular to the shaft axis.

Therefore, VA 10 is an axial seal rather than a radial shaft seal.

Its installation requirements differ from those of a conventional rotary shaft oil seal.

Rotation with the Shaft

The V-ring rotates together with the shaft.

Its sealing lip contacts a stationary component, such as the axial face of a bearing housing or cover.

Correct axial positioning is important for sealing effectiveness.

Additional Deflector Action

During rotation, the V-ring can also help deflect water and contaminants away from the sealing contact area.

This action supplements the flexible lip's sealing function.

However, the seal should not be considered suitable for arbitrary liquid pressure conditions.

Installation Dimensions of V-RING VA 10 NBR

The actual shaft diameter is the primary selection parameter.

Does VA 10 Fit a 10 mm Shaft?

Yes.

A shaft diameter of 10 mm falls within the standard mounting range of 9.5-11.5 mm.

The available axial space and the dimensions of the stationary counterface must also be checked.

Why Is the Inside Diameter Only 9 mm?

A V-ring is an elastic sealing component.

Its free-state inside diameter is smaller than the intended shaft diameter.

During installation, the elastomeric body stretches, allowing the seal to grip the shaft and rotate with it.

Therefore, VA 10 should not be selected as if it were a rigid ring with a 10 mm bore.

What Is the Recommended Installed Width?

The recommended installed axial width is 4.5 +/- 0.6 mm.

This dimension determines the position of the seal relative to the stationary counterface.

Incorrect positioning can cause excessive friction, accelerated lip wear or insufficient sealing performance.

What Counterface Dimensions Are Required?

For the standard VA 10 profile, the following dimensional relationships apply:

• Maximum counterface inside diameter: shaft diameter + 1 mm.

• Minimum counterface outside diameter: shaft diameter + 9 mm.

For a shaft diameter of 10 mm, this corresponds to:

• Maximum counterface inside diameter: 11 mm.

• Minimum counterface outside diameter: 19 mm.

The counterface should be appropriately prepared, clean and free from damage.

V-RING VA 10 NBR vs Other Variants

VA 10 vs VA 8

VA 8 is intended for smaller shaft diameters than VA 10.

Although the two seals have a similar construction, their free-state inside diameters differ.

They should not be considered automatically interchangeable.

VA 10 vs VA 12

The standard VA 12 is designed for shaft diameters of 11.5-12.5 mm.

VA 10 covers the range of 9.5-11.5 mm.

When selecting a seal at the boundary of these ranges, the manufacturer's recommendations should be considered.

VA 10 vs VS 10

Both designs belong to the axial V-ring seal family.

The VS profile has a different cross-sectional geometry and requires more axial installation space.

Replacing a VA profile with a VS design requires verification of the mounting dimensions and the complete sealing arrangement.

VA 10 NBR vs VA 10 FKM

NBR and FKM are different elastomeric materials.

NBR is commonly used in standard industrial sealing applications.

FKM may be suitable for certain applications requiring different chemical or temperature resistance.

Material substitution requires confirmation of dimensional compatibility and operating conditions.

Alternative Designations and Search References

The product may be encountered under the following written forms:

• V-RING VA 10 NBR

• V-ring VA 10

• VA 10 NBR

• VA10 NBR

• V-RING VA10

• V-ring type A 10

• VA 10 axial shaft seal

• V-ring 10 NBR seal ring

These are natural written variations of the product designation.

They are not confirmed OEM part numbers and do not establish complete interchangeability between seals from different manufacturers.

Typical Applications of V-RING VA 10 NBR

VA-type V-rings are used in assemblies requiring protection against external contamination.

Typical applications based on the sealing design include:

• Protection of small rolling bearings.

• Additional sealing of bearing housings.

• Small-diameter rotating shafts.

• Compact mechanical drive assemblies.

• Rotating machinery components.

• Equipment operating in dusty environments.

• Mechanical assemblies exposed to water or grease splashes.

These are typical applications of the V-ring design, not confirmed installations of this specific product in particular machine models.

Bearing Protection

A V-ring can provide an additional barrier against contaminants entering the bearing area.

It may operate together with other sealing components within the assembly.

Dust Protection

The flexible sealing lip helps restrict the entry of dust and fine contaminants.

Its effectiveness depends on correct installation and the condition of the counterface.

Moisture Protection

A V-ring can help reduce the ingress of moisture and water splashes.

It should not be treated as a universal pressure seal.

Selection and Interchangeability of V-RING VA 10 NBR

Before ordering, verify:

1. Complete designation V-RING VA 10 NBR.

2. VA sealing profile.

3. Shaft diameter of 9.5-11.5 mm.

4. NBR elastomer material.

5. Free-state inside diameter of 9 mm.

6. Cross-section height of 3 mm.

7. Free-state axial width of 5.5 mm.

8. Recommended installed axial width of 4.5 +/- 0.6 mm.

9. Available installation space.

10. Counterface dimensions and surface condition.

11. Shaft rotational speed.

12. Operating temperature.

13. Chemical compatibility between NBR and the operating medium.

14. Type of external contamination.

15. Requirements of the complete sealing arrangement.

Are VA 10 V-Rings from Different Manufacturers Interchangeable?

Not always.

Profile geometry, dimensional tolerances, elastomer materials and installation requirements must be compared.

An identical nominal designation does not guarantee complete technical compatibility.

Can VA 10 Replace a Conventional Radial Shaft Oil Seal?

Not automatically.

A V-ring provides axial sealing, while a conventional radial shaft oil seal provides radial sealing.

The two designs have different operating principles and installation requirements.

A V-ring often provides additional protection against contamination rather than serving as a direct replacement for a primary radial shaft oil seal.

Installation and Operation of V-RING VA 10 NBR

Shaft Preparation

Clean the shaft before installation.

Remove burrs, sharp edges and contaminants that could damage the elastomer.

Installing the Seal

Stretch the V-ring evenly and slide it onto the shaft.

Avoid twisting the seal body or damaging the flexible sealing lip.

Axial Positioning

The sealing lip must face the stationary axial counterface.

Maintain the recommended installed axial width.

Counterface Condition

The stationary axial counterface should be clean, appropriately prepared and free from damage.

Incorrect geometry may accelerate sealing lip wear.

Operating Conditions

Before starting the machine, verify rotational speed, operating temperature and compatibility between NBR and the operating medium.

Permissible operating conditions depend on the specific elastomer compound and the complete sealing arrangement.

Storage

Store the seal in a clean, dry environment, protected from direct sunlight, excessive heat and substances that may damage the elastomer.

Frequently Asked Questions - V-RING VA 10 NBR

What Shaft Diameter Is V-RING VA 10 NBR Designed For?

The standard VA 10 V-ring is designed for shaft diameters of 9.5-11.5 mm.

What Are the Dimensions of V-RING VA 10 NBR?

The free-state inside diameter is 9 mm, the cross-section height is 3 mm, and the free-state axial width is 5.5 mm. The recommended installed axial width is 4.5 +/- 0.6 mm.

What Does VA Mean in a V-Ring Designation?

VA identifies the standard axial V-ring profile with a flexible sealing lip that contacts a stationary axial counterface.

What Does NBR Mean?

NBR stands for nitrile butadiene rubber, an elastomer commonly used in industrial seals because of its flexibility and resistance to many mineral oils and greases.

Does V-RING VA 10 NBR Rotate with the Shaft?

Yes. The seal body rotates with the shaft, while its flexible sealing lip contacts a stationary axial counterface.

Does VA 10 Fit a 10 mm Shaft?

Yes. A 10 mm shaft falls within the standard mounting range of 9.5-11.5 mm. The available axial space and counterface dimensions must also be checked.

Can a VA 10 V-Ring Replace a Conventional Oil Seal?

Not automatically. A V-ring provides axial sealing, whereas a conventional radial shaft oil seal provides radial sealing. The designs have different installation requirements and may perform different functions.

Can VA 10 NBR Be Replaced with VA 10 FKM?

Only after confirming dimensional compatibility and operating conditions. NBR and FKM differ in their chemical and temperature resistance characteristics.

V-RING VA 10 NBR - Quick Technical Overview

V-RING VA 10 NBR is an elastomeric axial shaft seal designed for shaft diameters of 9.5-11.5 mm. The standard VA profile has a 9 mm free-state inside diameter, a 3 mm cross-section height and a 5.5 mm free-state axial width. Manufactured from nitrile butadiene rubber, the seal rotates with the shaft while its flexible lip protects the mechanism against contamination.

V-RING VA 10 NBR at simmering.pl

V-RING VA 10 NBR is available to order from simmering.pl, a specialist supplier of industrial seals, V-rings, rotary shaft oil seals, O-rings and rolling bearings.

We serve manufacturing companies, maintenance departments, machinery service providers and B2B customers.

Our warehouse and order processing operations are located in Lublin, Poland.

We supply customers throughout Europe and offer worldwide shipping.

We assist customers in identifying industrial seals by profile, dimensions, material and operating requirements.