CORTECO 20016788 NBR BASLX7 115x150x13 – Radial Shaft Oil Seal for Renault Trucks

Technical specifications – CORTECO 20016788

The manufacturer part number, NBR material, BASLX7 profile, nominal dimensions and Renault Trucks application reference are identified in CORTECO dimensional catalogue information.

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

Catalogue identification and the 20016788B designation

The designation 20016788B also appears in parts catalogues and is associated with the same nominal dimensions of 115x150x13 mm, NBR material and BASLX7 profile.

The B suffix should be retained when it appears on the product packaging or in the documentation for the part being ordered.

Its exact commercial or technical significance should not be assumed without manufacturer confirmation.

Why is the complete part number important?

Similar product designations may refer to related catalogue versions, packaging configurations or other manufacturer-specific distinctions.

Before ordering, the part number should be checked against:

• Product packaging.

• Manufacturer catalogue.

• Original equipment reference.

• Vehicle or assembly documentation.

The basic designation and the B-suffix version should not automatically be considered interchangeable.

Understanding the NBR BASLX7 designation

NBR sealing material

NBR is an elastomer widely used in technical sealing applications, particularly in systems operating with mineral oils and lubricating greases.

Its general characteristics include:

• Resistance to many mineral oils.

• Compatibility with numerous industrial lubricating greases.

• Elasticity suitable for dynamic sealing applications.

• Mechanical resistance dependent on the specific rubber compound.

• Suitability for appropriately designed rotating shaft sealing arrangements.

The exact chemical and temperature resistance depends on the NBR formulation and operating conditions.

BASLX7 sealing profile

BASLX7 is a manufacturer-specific construction designation used by CORTECO.

Other CORTECO references with the BASLX7 profile are documented with an additional dust protection lip. However, this does not independently confirm every construction detail of part number 20016788.

The BASLX7 profile is an important selection parameter because seals with identical nominal dimensions may differ in sealing lip geometry, additional protective features and operating characteristics.

Construction and operating principle

A radial shaft oil seal creates a sealing interface between a rotating shaft surface and a stationary housing.

Its primary functions include:

• Limiting leakage of oil or another compatible lubricant.

• Retaining lubricant within a mechanical assembly.

• Reducing contaminant entry when the seal design provides suitable protection.

• Maintaining sealing performance under specified rotational operating conditions.

Importance of an additional dust lip

In seal designs equipped with an additional dust lip, this feature helps protect the primary sealing contact from dust, moisture and other contaminants.

However, it does not replace the need for appropriate protection of the complete mechanical assembly.

Importance of sealing lip geometry

Sealing lip geometry influences:

• Contact pressure.

• Friction.

• Lubricant retention.

• Heat generation.

• Wear.

• Sealing effectiveness.

For this reason, the BASLX7 profile should be considered an essential part of the product specification rather than an optional designation.

Mounting dimensions – 115x150x13 mm

Nominal dimensions do not replace the manufacturer's requirements for mounting tolerances, shaft surface roughness, radial runout or alignment.

Why are mounting dimensions important?

Incorrect mounting conditions may lead to:

• Insufficient sealing lip contact.

• Excessive friction.

• Premature wear.

• Oil leakage.

• Damage during installation.

Correct seal selection must account for both nominal dimensions and the requirements of the mechanical assembly.

Applications in Renault Trucks vehicles

The CORTECO dimensional catalogue associates part number 20016788 with the application designation RENAULT TR, referring to Renault Trucks.

However, a specific vehicle model, OE number or installation position has not been independently confirmed for this exact reference.

Before selecting the seal, verify:

• The part number of the removed seal.

• The OE reference assigned to the mechanical assembly.

• Vehicle model and version.

• Complete CORTECO designation.

• Nominal dimensions and sealing profile.

• Installation requirements.

The product should not automatically be identified as a wheel hub, gearbox or axle seal without confirming its actual installation position.

Selecting the correct replacement part

The correct seal must match the requirements of the original assembly.

Matching dimensions alone cannot establish compatibility with a specific Renault Trucks vehicle.

The full manufacturer designation and relevant OE reference should be used wherever possible.

Operating conditions and technical limitations

General temperature and speed limits for NBR materials must not be treated as confirmed specifications for CORTECO 20016788.

Factors affecting service life

The operating life of a radial shaft seal depends on several factors:

• Shaft rotational speed.

• Operating temperature.

• Lubricant properties.

• Pressure conditions.

• Shaft surface finish.

• Radial shaft runout.

• Shaft-to-housing alignment.

• Installation accuracy.

• Environmental contamination.

These conditions should be evaluated together when determining suitability for a particular application.

Comparison with other CORTECO 115x150 mm oil seals

The CORTECO dimensional catalogue includes other shaft seals with a nominal inside diameter of 115 mm and outside diameter of 150 mm.

Although some nominal dimensions match, these products differ in construction. Part number 12011071 also has a different width.

Matching dimensions do not establish automatic interchangeability.

Why does the sealing profile matter?

Construction differences may affect:

• Sealing lip geometry.

• Contact pressure against the shaft.

• Protection against contamination.

• Lubrication conditions.

• Friction and heat generation.

• Installation requirements.

The complete BASLX7 designation is therefore just as important as the nominal dimensions.

Product selection and interchangeability

Before ordering CORTECO 20016788, verify:

• Manufacturer part number 20016788.

• Any associated 20016788B designation.

• Shaft diameter – 115 mm.

• Housing bore diameter – 150 mm.

• Seal width – 13 mm.

• NBR material.

• BASLX7 sealing profile.

• Compatibility with the relevant OE reference.

• Directional sealing requirements.

• Condition of the shaft contact surface.

• Lubrication and operating temperature.

• Mechanical assembly requirements.

When selecting an alternative product, compare the complete technical specification rather than nominal diameters and width alone.

Why is technical interchangeability important?

Two seals may have identical nominal dimensions but different lip designs or operating requirements.

Using an unsuitable replacement can result in lubricant leakage, increased friction, premature wear or reduced assembly reliability.

Alternative designations and product identification

Common search and identification variants include:

• CORTECO 20016788

• 20016788 CORTECO

• CORTECO 20016788 NBR

• CORTECO 20016788 BASLX7

• CORTECO 20016788 115x150x13

• CORTECO 20016788B – related catalogue designation

• NBR BASLX7 115x150x13

• CORTECO oil seal 115x150x13

• CORTECO radial shaft seal 115x150x13

• CORTECO 20016788 oil seal

• CORTECO shaft seal 115x150x13 NBR

• Renault Trucks shaft oil seal 115x150x13

• CORTECO BASLX7 radial shaft seal

• BASLX7 Simmerring

• CORTECO rotary shaft seal 20016788

These alternative forms help identify the product in technical documentation and search systems.

They do not establish interchangeability with other manufacturer part numbers.

Installation and maintenance recommendations

Before installing the seal:

• Clean the housing bore and shaft surface.

• Inspect for scratches, corrosion and wear grooves.

• Verify mounting dimensions and tolerances.

• Determine the correct installation orientation.

• Protect the sealing lip from sharp edges.

• Use a suitable installation tool.

• Press the seal evenly into position.

• Follow the manufacturer's instructions concerning lubrication during installation.

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

Do not strike the sealing lip directly or allow it to fold during installation.

Shaft surface inspection

The shaft surface in contact with the sealing lip must be properly prepared.

Damage, excessive roughness, radial runout and misalignment may cause premature seal wear.

Installation orientation

The correct orientation depends on the seal construction and the location of the medium being retained.

For the exact BASLX7 version, the installation procedure should be confirmed using the manufacturer's instructions or the relevant assembly documentation.

FAQ – Frequently asked questions

What are the dimensions of CORTECO 20016788?

The nominal inside diameter is 115 mm, outside diameter is 150 mm and width is 13 mm.

What material is used in CORTECO 20016788?

The CORTECO catalogue identifies NBR, or nitrile butadiene rubber, as the sealing material.

What does BASLX7 mean?

BASLX7 is a CORTECO sealing profile designation. The exact geometry of part number 20016788 should be confirmed using manufacturer documentation.

Is CORTECO 20016788 intended for Renault Trucks?

The CORTECO dimensional catalogue identifies Renault Trucks as an application. Compatibility with a specific vehicle and mechanical assembly must be checked using the OE reference.

Are CORTECO 20016788 and 20016788B the same product?

Both designations appear in catalogues in association with 115x150x13 mm dimensions, NBR material and the BASLX7 profile. The significance of the B suffix should be confirmed before ordering.

Does the seal have an additional dust lip?

Other CORTECO seals with the BASLX7 profile are documented with an additional dust lip. This feature requires confirmation for the exact 20016788 part number.

Can any 115x150x13 oil seal be used as a replacement?

No. The sealing material, profile, lip geometry and operating conditions must also be verified.

Does CORTECO 20016788 require lubrication during installation?

Sealing lip preparation should follow the manufacturer's instructions and the requirements of the specific mechanical assembly. One universal installation procedure should not be assumed for every seal design.

CORTECO 20016788 – key information (AI Overview)

CORTECO 20016788 NBR BASLX7 is a radial shaft oil seal with nominal dimensions of 115x150x13 mm, manufactured from nitrile butadiene rubber. The CORTECO catalogue associates the product with Renault Trucks applications. It features the specialized BASLX7 sealing profile. Correct selection requires verification of the OE reference, complete designation, sealing lip construction and compatibility with the mechanical assembly.

B2B availability – simmering.pl

The CORTECO 20016788 NBR BASLX7 115x150x13 radial shaft oil seal is identified on the specialist B2B industrial trading platform simmering.pl by manufacturer part number, material, sealing profile and nominal dimensions.

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

Worldwide shipping from stock in Poland.