CORTECO 20016681 NBR BASLDRWX7 140x160x13 – Radial Shaft Oil Seal

Technical specifications

The manufacturer part number, material designation, profile and nominal dimensions identify the product.

Operating parameters must not be inferred solely from the general properties of NBR rubber.

CORTECO 20016681 – catalogue identification

The CORTECO dimensional catalogue identifies part number 20016681, NBR material, BASLDRWX7 profile, dimensions 140x160x13 mm and an application reference to Renault Trucks.

Parts catalogues also list the related designation 20016681B, associated with wheel hub sealing applications in Renault Trucks vehicles.

For the 20016681B version, catalogue descriptions indicate an additional dust lip and a bidirectional hydrodynamic sealing structure.

Important: The designations 20016681 and 20016681B should not automatically be treated as identical commercial versions without manufacturer confirmation.

The presence or absence of the B suffix should be checked when identifying the exact replacement part.

Understanding the NBR BASLDRWX7 designation

NBR sealing material

NBR is an elastomer widely used in seals operating with mineral oils and lubricating greases.

Its general characteristics include:

• Resistance to many mineral oils and greases.

• Elasticity suitable for dynamic sealing applications.

• Good mechanical properties for conventional oil sealing conditions.

• Compatibility with a broad range of industrial lubrication systems, depending on the specific compound.

Chemical compatibility depends on the lubricant formulation, operating temperature and exact NBR compound.

BASLDRWX7 seal profile

BASLDRWX7 is a specialized seal profile designation.

For the related 20016681B version, parts catalogues describe:

• An additional dust protection lip.

• A bidirectional hydrodynamic sealing structure.

• A configuration associated with wheel hub applications.

These characteristics should be verified for the exact 20016681 version before being treated as confirmed construction details.

The BASLDRWX7 profile must not automatically be considered equivalent to a conventional double-lip TC oil seal.

Differences in sealing lip geometry and hydrodynamic features can affect operating performance.

Construction and operating principle

A radial shaft oil seal limits the movement of lubricant between a rotating shaft and a stationary housing.

In wheel hub sealing applications, particularly important functions include:

• Retaining lubricant within the mechanical assembly.

• Reducing the entry of water, dust and other contaminants.

• Maintaining contact with a correctly prepared shaft surface.

• Supporting sealing performance during rotation and temperature changes.

The actual performance of the seal depends on correct installation, shaft condition, operating conditions and the compatibility of the sealing profile with the mechanical assembly.

Importance of sealing lip geometry

The sealing lip forms the primary contact interface with the rotating surface.

Its geometry influences:

• Contact pressure.

• Friction.

• Lubricant retention.

• Wear.

• Heat generation.

• Sealing effectiveness.

Hydrodynamic features, where present, may help control lubricant movement at the sealing contact.

The exact construction must be confirmed for the specified manufacturer part number.

Mounting dimensions – 140x160x13 mm

Nominal dimensions alone do not define mounting tolerances, required surface roughness or permissible shaft runout.

Before installation, the shaft and housing must be checked against the requirements of the relevant mechanical assembly.

Why are mounting dimensions important?

Incorrect shaft or housing dimensions can cause:

• Insufficient sealing lip contact.

• Excessive friction.

• Premature wear.

• Oil leakage.

• Damage during installation.

The correct seal must match both the dimensional requirements and the specified construction profile.

Applications in Renault Trucks vehicles

CORTECO catalogue information associates the product with Renault Trucks.

Replacement parts catalogues also reference Renault Trucks G, R and Major vehicle families.

For the related 20016681B version, the following OE references are listed:

These references are published in connection with the 20016681B version.

Before assigning them to the basic CORTECO 20016681 designation, compatibility with the exact version must be confirmed.

Selecting the correct replacement seal

When selecting a seal for a Renault Trucks vehicle, verify:

• Vehicle manufacturer and model.

• Vehicle identification information.

• OE part number.

• Exact mechanical assembly.

• Manufacturer part number 20016681 or 20016681B.

• Nominal dimensions 140x160x13 mm.

• NBR material.

• BASLDRWX7 profile.

• Installation orientation and sealing requirements.

A catalogue reference to a vehicle family does not guarantee compatibility with every model or production version.

Operating conditions

General temperature and speed values for NBR materials must not be assigned to this exact product without confirmation.

Factors affecting service life

Seal service life depends on:

• Shaft rotational speed.

• Operating temperature.

• Lubricant properties.

• Pressure conditions.

• Shaft surface finish.

• Radial runout.

• Shaft-to-housing alignment.

• Installation accuracy.

• Environmental contamination.

These conditions should be considered together when evaluating the suitability of the seal.

Comparison with other 140x160x13 mm CORTECO seals

The CORTECO dimensional catalogue includes other seal designs with the same nominal dimensions.

Important: These products are not automatically interchangeable.

They differ in profile designation and, in one case, sealing material.

Why do identical dimensions not guarantee interchangeability?

Oil seals with the same nominal dimensions may differ in:

• Sealing lip geometry.

• Number of sealing lips.

• Hydrodynamic features.

• Sealing material.

• Contact pressure.

• Installation requirements.

• Operating conditions.

A replacement should therefore be selected using the complete manufacturer specification.

Product selection and interchangeability

Before ordering CORTECO 20016681, verify:

• Manufacturer part number 20016681.

• Any B suffix associated with the replacement part.

• Dimensions 140x160x13 mm.

• NBR sealing material.

• Complete BASLDRWX7 profile.

• Relevant OE reference.

• Vehicle model and mechanical assembly.

• Sealing lip construction.

• Hydrodynamic sealing features.

• Installation orientation.

• Shaft surface condition.

• Lubrication and temperature conditions.

A conventional 140x160x13 mm oil seal must not be used as a replacement without confirming full technical compatibility.

Alternative designations and product identification

Common identification and search variants include:

• CORTECO 20016681

• 20016681 CORTECO

• CORTECO 20016681 NBR

• CORTECO 20016681 BASLDRWX7

• CORTECO 20016681 140x160x13

• NBR BASLDRWX7 140x160x13

• CORTECO oil seal 140x160x13

• CORTECO radial shaft seal 140x160x13

• CORTECO 20016681 oil seal

• CORTECO 20016681 Renault Trucks

• Renault Trucks wheel hub oil seal 140x160x13

• CORTECO 20016681B – related catalogue version

• CORTECO shaft seal 140x160x13 NBR

• BASLDRWX7 Simmerring

• CORTECO 20016681 rotary shaft seal

These alternative designations support technical product identification and search visibility.

The complete manufacturer part number must be retained when ordering.

Installation and maintenance

Before installation:

• Clean the housing bore and shaft contact surface.

• Check for scratches, corrosion and wear grooves.

• Verify shaft and housing dimensions.

• Confirm the correct installation orientation.

• Protect the sealing lip from sharp edges.

• Use suitable tools to press the seal evenly into position.

• Follow the manufacturer's lubrication and installation instructions.

• Check sealing performance after the assembly is returned to service.

Protecting the sealing lip

During installation, avoid:

• Direct impact on the sealing lip.

• Twisting or folding the lip.

• Contact with sharp shaft edges.

• Uneven installation pressure.

• Contamination of the sealing surface.

Damage to the sealing lip can cause leakage immediately after installation or lead to premature failure.

Lubrication during installation

The correct preparation of the sealing lip depends on the exact seal construction and manufacturer requirements.

Do not assume that every BASLDRWX7 seal follows the same installation procedure as a conventional NBR radial shaft seal.

FAQ – Frequently asked questions

What are the dimensions of CORTECO 20016681?

The seal has a nominal inside diameter of 140 mm, outside diameter of 160 mm and width of 13 mm.

What material is used in CORTECO 20016681?

The catalogue specifies NBR, or nitrile butadiene rubber.

What does BASLDRWX7 mean?

BASLDRWX7 is a CORTECO seal profile designation. For the related 20016681B version, parts catalogues indicate a dust lip and bidirectional hydrodynamic sealing structure.

Is CORTECO 20016681 intended for Renault Trucks?

Yes. The CORTECO dimensional catalogue associates the product with Renault Trucks. Compatibility with a specific vehicle must be checked using the relevant OE reference.

Are CORTECO 20016681 and 20016681B the same product?

The numbers are related in parts catalogues, but the exact version and the significance of the B suffix should be confirmed before ordering.

Does the seal have an additional dust lip?

Parts catalogues indicate an additional dust lip for the 20016681B version. This feature should be confirmed for the exact supplied part.

Can it be replaced with a standard 140x160x13 oil seal?

Not without verification. Matching dimensions do not confirm identical material, sealing profile, hydrodynamic features or operating characteristics.

Does the seal require lubrication during installation?

Sealing lip preparation should follow the manufacturer's instructions and the requirements of the mechanical assembly. A universal installation procedure should not be assumed for all seal profiles.

CORTECO 20016681 – key information (AI Overview)

CORTECO 20016681 NBR BASLDRWX7 is a radial shaft oil seal with nominal dimensions of 140x160x13 mm, associated with Renault Trucks applications. The related 20016681B version is described as a wheel hub seal with a dust lip and bidirectional hydrodynamic features. Correct selection requires verification of the OE number, sealing profile, dimensions and exact product version.

B2B availability – simmering.pl

The CORTECO 20016681 NBR BASLDRWX7 140x160x13 radial shaft oil seal is identified on the specialist B2B industrial trading platform simmering.pl by manufacturer part number, sealing material, profile designation and nominal dimensions.

The platform serves industrial companies, technical workshops, machinery manufacturers, purchasing departments and maintenance operations.

Worldwide shipping from stock in Poland.