V-RING VA 170 NBR 165-175 - Axial Shaft Seal

V-RING VA 170 NBR - Axial Shaft Seal for 165-175 mm Shafts

V-RING VA 170 NBR is an elastomeric axial shaft seal with a VA profile, designed for shaft diameters of 165-175 mm. Manufactured from nitrile butadiene rubber (NBR), it features a flexible sealing lip that contacts a stationary counterface. The V-ring rotates together with the shaft and helps prevent water, dust, dirt and other contaminants from entering the protected mechanical assembly.

Technical Specifications - V-RING VA 170 NBR

The dimensional values correspond to the standard VA 170 profile used in industrial sealing applications. As the manufacturer of this particular product has not been specified, the exact dimensional drawing should be confirmed before installation in applications requiring strict tolerances.

What Does V-RING VA 170 NBR Mean?

V-RING - Seal Type

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

Unlike a conventional radial shaft oil seal, its sealing lip operates axially against a surface perpendicular to the shaft axis.

The body of the seal is mounted on the shaft, while the flexible lip creates sealing contact with a stationary counterface.

This construction is particularly useful for protecting bearing assemblies and rotating mechanical components against external contamination.

VA - Sealing Profile

VA identifies a standard V-ring profile featuring a flexible axial sealing lip.

The VA profile is widely used in industrial bearing protection and rotating shaft sealing arrangements.

An important characteristic is that the seal can be installed directly on the shaft without requiring the conventional housing bore used for a radial shaft oil seal.

170 - Nominal Seal Size

The number 170 identifies the nominal V-ring size.

For the standard VA 170 profile, the intended shaft diameter range is 165-175 mm.

The designation 170 does not represent the inside diameter of the seal in its free state.

The nominal free-state inside diameter is 153 mm.

This difference is intentional and 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 technology.

It provides good resistance to many mineral oils and greases, together with the flexibility required for sealing applications.

Chemical compatibility depends on the specific rubber compound, operating temperature and medium.

NBR should not be assumed to resist every chemical substance.

Construction and Operating Principle of V-RING VA 170 NBR

Flexible Elastomeric Body

The seal body is manufactured from NBR rubber.

During installation, it stretches over the shaft and grips the shaft surface through elastic tension.

This allows the V-ring to rotate together with the shaft.

Axial Sealing Lip

The flexible sealing lip is the primary working element of the V-ring.

When correctly installed, it contacts a stationary axial surface.

The resulting sealing contact restricts the movement of contaminants toward the protected mechanical components.

Axial Sealing Action

The working sealing surface is positioned perpendicular to the shaft axis.

This distinguishes a V-ring from a conventional radial shaft seal, which operates through radial contact with the rotating shaft.

Rotation with the Shaft

The VA 170 seal is mounted on the shaft and rotates together with it.

The sealing lip runs against a stationary counterface, such as a bearing housing face, cover or another appropriately designed component.

Additional Deflector Action

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

This deflector effect supplements the contact sealing function.

However, it does not mean that the seal is suitable for unlimited pressure or rotational speed.

Dimensions and Shaft Diameter Selection

The shaft diameter is the primary selection parameter for V-RING VA 170 NBR.

The standard VA 170 size is intended for shafts measuring 165-175 mm.

Why Is the Free-State Inside Diameter 153 mm?

A V-ring is an elastic sealing component.

Its inside diameter before installation is smaller than the shaft diameter for which it is designed.

During installation, the elastomeric body stretches and conforms to the shaft.

This creates the necessary grip between the V-ring body and the shaft surface.

Consequently, the product must not be selected as if it were a rigid ring with a 170 mm bore.

Does VA 170 Fit a 170 mm Shaft?

Yes.

A shaft diameter of 170 mm falls within the nominal mounting range of 165-175 mm.

Final selection must also consider available installation space, the counterface geometry and operating conditions.

V-RING VA 170 NBR vs Other Variants

VA 170 vs VA 160

VA 160 is intended for smaller shaft diameters.

The standard shaft diameter range for VA 160 is 155-165 mm.

VA 170 covers 165-175 mm.

For a shaft diameter at the 165 mm boundary, the manufacturer's recommendations should be considered when selecting the appropriate size.

VA 170 vs VA 180

VA 180 is designed for shaft diameters of 175-185 mm.

VA 170 and VA 180 should not be treated as automatically interchangeable because they have different free-state dimensions and mounting ranges.

VA vs VS Profile

VA and VS belong to the family of axial V-ring seals, but their cross-sectional geometries differ.

The VS profile has different dimensional and installation space requirements.

Replacing a VA seal with a VS profile requires verification of the available mounting space and counterface dimensions.

NBR vs FKM

V-ring seals are available in different elastomeric materials.

NBR is commonly selected for standard industrial sealing applications.

FKM may be suitable for certain applications involving elevated temperatures or specific chemical media.

Material selection must be based on the actual operating conditions.

NBR and FKM should not be considered automatically interchangeable.

Alternative Designations and Search References

The product may be encountered under the following written forms:

• V-RING VA 170 NBR

• V-ring VA 170

• VA 170 NBR

• VA170 NBR

• V-RING VA170

• V-ring type A 170

• VA 170 axial shaft seal

These are natural written variations and descriptions of the product type.

They do not establish that every similarly designated product from different manufacturers has identical dimensions or material specifications.

Typical Applications of V-RING VA 170 NBR

VA-type V-rings are used to protect rotating mechanical assemblies against external contamination.

Typical applications based on the seal design include:

• Protection of rolling bearings against dust and moisture.

• Additional sealing of bearing housings.

• Industrial rotating shaft assemblies.

• Mechanical drive systems.

• Machinery operating in dusty environments.

• Protection against water and grease splashes.

These are general applications associated with axial V-ring seals, not confirmed installations of this specific product in particular machine models.

Rolling Bearing Protection

A V-ring can provide an additional barrier against contaminants entering a bearing assembly.

It may operate alongside other sealing components within the complete bearing protection system.

Dusty Operating Environments

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

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

Protection Against Moisture

The seal can help protect mechanical components against water splashes and moisture encountered during normal operation.

A standard V-ring should not be treated as a pressure-rated seal for arbitrary liquid pressure conditions.

Selection and Interchangeability of V-RING VA 170 NBR

Before ordering, verify:

1. Complete designation V-RING VA 170 NBR.

2. VA sealing profile.

3. Shaft diameter within 165-175 mm.

4. NBR elastomer material.

5. Free-state seal dimensions.

6. Available installation space.

7. Required installed axial width.

8. Counterface geometry and surface condition.

9. Shaft rotational speed.

10. Operating temperature.

11. Sealed medium and external contaminants.

12. Required protection of the mechanical assembly.

Are V-Rings from Different Manufacturers Interchangeable?

Not always.

Even when the nominal designation is identical, the profile geometry, shaft diameter range, elastomer material and counterface requirements should be verified.

A matching VA 170 designation does not eliminate the need to compare the manufacturers' dimensional specifications.

Installation and Operation of V-RING VA 170 NBR

Shaft Preparation

Before installation, clean the shaft surface.

Remove sharp edges and burrs that could damage the elastomer during stretching.

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.

Positioning the Sealing Lip

The sealing lip must face the stationary axial surface against which it will operate.

The axial position of the V-ring must comply with the installation requirements.

Counterface Condition

The stationary counterface should be properly prepared and free from damage.

Surface irregularities, sharp edges or incorrect geometry can accelerate sealing lip wear.

Operating Conditions

Before starting the machine, verify rotational speed, temperature, exposure to media and friction conditions.

The permissible rotational speed must not be assumed solely from the nominal VA 170 size.

Storage

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

Frequently Asked Questions - V-RING VA 170 NBR

What Shaft Diameter Is V-RING VA 170 NBR Designed For?

The standard VA 170 V-ring is designed for shaft diameters of 165-175 mm.

Does VA 170 Mean an Inside Diameter of 170 mm?

No.

The number 170 identifies the nominal size. The free-state inside diameter of the seal is nominally 153 mm.

What Does VA Mean in a V-Ring Designation?

VA identifies an axial V-ring sealing profile featuring a flexible lip that operates against a stationary axial counterface.

What Does NBR Mean?

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

Does V-RING VA 170 NBR Rotate with the Shaft?

Yes.

The seal body is mounted directly on the shaft and rotates with it, while the flexible sealing lip contacts a stationary axial surface.

Can VA 170 Replace a Conventional Radial Shaft Oil Seal?

Not necessarily.

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

The two designs have different operating principles and functions.

A V-ring is frequently used as additional protection against contamination.

Can VA 170 NBR Be Replaced with VA 170 FKM?

Only after confirming dimensional compatibility and application requirements.

NBR and FKM have different material properties and resistance characteristics.

Are VA 170 and VA 180 Interchangeable?

Automatic interchangeability should not be assumed.

VA 170 is designed for shaft diameters of 165-175 mm, while VA 180 is intended for 175-185 mm.

V-RING VA 170 NBR - Quick Technical Overview

V-RING VA 170 NBR is an elastomeric axial shaft seal designed for shaft diameters of 165-175 mm. It features a VA profile and is manufactured from nitrile butadiene rubber. The seal rotates with the shaft, while its flexible lip contacts a stationary axial surface to help prevent moisture and contaminants from entering the protected mechanical assembly.

V-RING VA 170 NBR at simmering.pl

V-RING VA 170 NBR is available to order from simmering.pl, a specialist supplier of industrial seals, rotary shaft oil seals, V-rings, 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.