CORTECO 12011031 NBR BA 80x110x13 Wheel Hub Oil Seal

Technical specifications

OE cross-reference number

The IVECO 540727 reference is used to identify the corresponding original equipment component.

However, this reference alone does not confirm compatibility with every IVECO vehicle.

Before ordering, the OE number should be checked against the vehicle model, rear axle version and wheel hub assembly documentation.

CORTECO 12011031 – catalogue identification

The CORTECO dimensional catalogue identifies 12011031 – NBR BA – 80x110x13 mm and indicates an IVECO application.

Replacement-parts catalogues also list the designation 12011031B.

Additional catalogue information includes:

• Installation position: rear axle wheel hub.

• Commercial reference: 82011031.

• EAN: 3358960110312.

• Original equipment reference: IVECO 540727.

The complete manufacturer reference, dimensions and sealing profile should be verified before ordering.

What does CORTECO 12011031 NBR BA 80x110x13 mean?

The product designation identifies the manufacturer, catalogue reference, dimensions, elastomer material and sealing profile.

• CORTECO – manufacturer brand.

• 12011031 – product catalogue reference.

• 80 mm – nominal shaft or mating surface diameter.

• 110 mm – nominal housing bore diameter.

• 13 mm – nominal axial width.

• NBR – nitrile butadiene rubber.

• BA – radial shaft seal profile with a rubber-covered outer diameter and spring-loaded primary sealing lip.

The dimensions 80x110x13 mm describe the nominal installation geometry. They do not specify shaft tolerances, housing bore tolerances or permissible operating conditions.

BA sealing profile – construction and operating principle

The BA profile is a conventional radial shaft sealing design used to retain lubricants in rotating assemblies.

1. Rubber-covered outer diameter

The elastomeric outer surface provides static sealing between the seal and the wheel hub housing bore.

A correctly selected interference fit helps maintain the component in position and limits leakage around its outer circumference.

2. Internal metal reinforcement

The metal reinforcing insert provides dimensional stability and helps maintain the shape of the seal during installation.

It also supports the correct positioning of the sealing lip relative to the mating surface.

3. Spring-loaded primary sealing lip

The primary sealing lip maintains contact with the rotating mating surface.

A garter spring helps maintain the required radial contact force, supporting lubricant retention during operation.

The standard BA profile does not incorporate an additional dust lip.

Therefore, CORTECO 12011031 should not automatically be considered interchangeable with a BASL seal.

NBR material properties

NBR is a synthetic elastomer widely used in oil sealing applications because of its compatibility with many mineral oil-based lubricants and greases.

For wheel hub sealing applications, the following factors are particularly important:

• Compatibility with the lubricant used in the hub assembly.

• Resistance to operating temperatures within the hub.

• Appropriate condition of the mating surface.

• Adequate lubrication during operation.

• Protection against contamination according to the design of the complete assembly.

NBR is not universally resistant to all solvents, chemicals or environmental conditions.

Its resistance to ozone and certain atmospheric influences is limited.

The exact operating temperature range, permissible pressure and maximum peripheral shaft speed for CORTECO 12011031 have not been confirmed.

BA versus BASL – sealing profile comparison

A different sealing profile should only be selected after checking the wheel hub construction, available installation space and operating requirements.

Identical dimensions alone do not guarantee interchangeability.

Selecting CORTECO 12011031 for an IVECO wheel hub

Before ordering, verify:

1. Original equipment reference IVECO 540727.

2. CORTECO catalogue reference 12011031 or 12011031B.

3. Nominal mating surface diameter – 80 mm.

4. Nominal housing bore diameter – 110 mm.

5. Seal width – 13 mm.

6. Required BA sealing profile.

7. Compatibility of NBR with the lubricant.

8. Condition of the sealing contact surface.

9. Rear axle and wheel hub configuration.

10. Documentation for the specific vehicle.

Replacement-parts catalogues indicate installation in the rear axle area, but this does not establish compatibility with every IVECO model.

Cross-references and alternative designations

The SKF, AKRON-MALÒ and SKT references appear in replacement-parts cross-reference catalogues.

They should not be treated as confirmation of identical construction without checking the technical documentation for each component.

Common English technical designations include:

• CORTECO 12011031 NBR BA

• CORTECO 12011031B 80x110x13

• CORTECO 82011031 Wheel Hub Oil Seal

• IVECO 540727 Wheel Hub Seal

• CORTECO 80x110x13 Oil Seal

• CORTECO 12011031 Radial Shaft Seal

• Rear Axle Wheel Hub Seal 80x110x13

• NBR BA Rotary Shaft Seal 80x110x13

Installation and operating recommendations

Before installation, clean the housing bore and inspect the sealing contact surface for corrosion, scratches, burrs and excessive wear.

The seal should be installed evenly using suitable mounting tools.

Avoid applying installation force directly to the sealing lip or damaging the garter spring.

Installation orientation must correspond to the wheel hub assembly documentation.

In conventional applications, the spring-loaded primary sealing lip faces the medium being retained unless the equipment manufacturer specifies otherwise.

After installation, confirm that the seal is correctly seated and that the mating surface has been properly prepared.

Incorrect installation, unsuitable lubrication or excessive wear of the mating surface may cause premature seal failure and lubricant leakage.

FAQ – Frequently asked questions

1. What are the dimensions of CORTECO 12011031?

The nominal dimensions are 80x110x13 mm, corresponding to an 80 mm mating surface diameter, 110 mm housing bore diameter and 13 mm axial width.

2. Is CORTECO 12011031 a wheel hub oil seal?

Yes. Replacement-parts catalogues identify it as a wheel hub seal for rear axle applications.

3. What IVECO OE reference corresponds to CORTECO 12011031B?

The listed original equipment reference is IVECO 540727.

4. What does the BA sealing profile mean?

BA identifies a radial shaft seal with a rubber-covered outer diameter and a spring-loaded primary sealing lip.

5. Does CORTECO 12011031 have an additional dust lip?

The standard BA profile does not incorporate an additional dust lip.

6. Are CORTECO 12011031 and 12011031B related catalogue references?

Yes. The dimensional catalogue identifies 12011031, while replacement-parts catalogues list 12011031B for the NBR BA 80x110x13 mm seal.

7. Is SKF ATN307 a comparison reference?

Yes. SKF ATN307 appears in replacement-parts cross-reference catalogues. Interchangeability must be verified for the specific application.

8. Does CORTECO 12011031 fit every IVECO rear wheel hub?

No. Compatibility depends on the original equipment reference, axle version and specific wheel hub construction.

CORTECO 12011031 – key information

CORTECO 12011031 / 12011031B is an NBR wheel hub oil seal with nominal dimensions of 80x110x13 mm and a BA sealing profile. Replacement-parts catalogues identify a rear axle application and IVECO OE reference 540727. Its construction features a rubber-covered outer diameter and spring-loaded primary sealing lip. Correct selection requires verification of the specific wheel hub assembly.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.