CORTECO 12010978 NBR BA 52x76.2x10 mm Radial Shaft Seal

Technical specifications

Important: The nominal outer diameter is 76.2 mm. It must not be rounded to 76 mm or confused with a 52x76x10 mm radial shaft seal.

CORTECO 12010978 - catalogue identification

The CORTECO dimensional catalogue identifies the product as:

12010978 - NBR BA - 52x76.2x10 mm - IVECO

Replacement-parts catalogues also use the following references:

The complete designation is important when identifying and ordering the correct replacement component.

IVECO OE numbers and cross-references

IVECO 4023144 is listed as an OE cross-reference for CORTECO 12010978B.

This catalogue association does not automatically establish compatibility with every IVECO vehicle.

The original component reference and installation position must be verified before ordering.

EAN/GTIN - catalogue discrepancy

Two EAN numbers appear in commercial listings for CORTECO 12010978B:

• 3358960038951

• 3358960365439

Because the available listings differ, neither number should be treated as the definitively confirmed EAN without checking the product packaging or current CORTECO documentation.

What does CORTECO 12010978 NBR BA 52x76.2x10 mean?

• CORTECO - manufacturer brand.

• 12010978 - base catalogue reference.

• NBR - nitrile butadiene rubber.

• BA - conventional radial shaft sealing profile.

• 52 mm - nominal shaft diameter.

• 76.2 mm - nominal housing bore diameter.

• 10 mm - nominal axial width.

Nominal dimensions do not define the manufacturing tolerances of the shaft or housing bore.

The installation fit must comply with the technical requirements of the sealed mechanical assembly.

BA sealing profile - construction and operating principle

1. Primary sealing lip

The BA profile incorporates a single primary sealing lip operating against the rotating shaft surface.

Its main function is to limit oil or grease leakage from the sealed mechanical assembly.

Sealing effectiveness depends on shaft surface quality, appropriate lubrication and compatibility between the elastomer and the operating medium.

2. Garter spring

A conventional BA radial shaft seal typically incorporates a circumferential garter spring.

The spring helps maintain contact pressure between the sealing lip and the rotating shaft.

Detailed spring specifications for CORTECO 12010978 have not been confirmed in the available product documentation.

3. Elastomer-covered outer surface

The standard BA construction typically features an elastomer-covered outer surface and an internal reinforcing element.

The outer elastomer covering provides static sealing between the seal body and the housing bore.

Correct housing dimensions and surface condition are important for maintaining sealing performance.

4. Additional dust lip

An additional dust lip is not a standard feature of the BA sealing profile.

If additional protection against external contamination is required, another sealing profile, such as BASL, may be appropriate.

However, compatibility must be verified before selecting a different construction.

NBR - technical material properties

NBR is a technical elastomer commonly used in rotating shaft sealing applications.

Appropriately selected NBR compounds typically offer:

• Good resistance to many mineral oils.

• Compatibility with numerous industrial greases.

• Suitability for oil-lubricated mechanical assemblies.

• Useful mechanical properties.

• Applicability in appropriately specified mechanical drive systems.

Temperature and chemical resistance depend on the specific elastomer compound.

Individual maximum values for operating temperature, pressure and peripheral shaft speed have not been confirmed for CORTECO 12010978.

BA versus BASL - sealing profile comparison

Changing the sealing profile may affect friction and contact conditions between the sealing lip and shaft.

Identical nominal dimensions do not guarantee interchangeability.

Applications of CORTECO 12010978

Wheel hub sealing

CORTECO 12010978B is classified in replacement-parts catalogues as a wheel hub shaft seal.

In this application, the radial shaft seal helps retain lubricant within an appropriately designed wheel hub assembly.

The CORTECO dimensional catalogue associates the reference with IVECO, while replacement-parts catalogues list OE number 4023144.

However, a complete list of compatible vehicle models and axle versions has not been confirmed.

Compatibility must therefore be verified against the documentation of the specific assembly.

Other rotating shaft mechanisms

NBR BA radial shaft seals may also be used in appropriately specified gearboxes and other rotating mechanical assemblies.

These are typical applications of this sealing construction, not additional confirmed applications for CORTECO 12010978.

Comparison with other CORTECO radial shaft seals

This comparison illustrates differences in dimensions, materials and sealing construction.

Particular attention should be paid to CORTECO 12031204, which has the same nominal shaft and housing bore diameters but a different sealing profile and axial dimensions.

None of the listed products should automatically be considered interchangeable with CORTECO 12010978.

Selection and interchangeability

Before ordering CORTECO 12010978, verify:

1. Nominal shaft diameter - 52 mm.

2. Nominal housing bore diameter - 76.2 mm.

3. Installation width - 10 mm.

4. NBR elastomer material.

5. BA sealing profile.

6. Requirements for an additional dust lip.

7. Type of sealed oil or grease.

8. Operating temperature and shaft rotational speed.

9. Condition of the shaft and housing surfaces.

10. IVECO OE reference 4023144, where applicable.

A 52x76x10 mm seal must not automatically be considered a substitute for the 52x76.2x10 mm version.

The 0.2 mm difference in nominal outer diameter may affect the installation fit and sealing performance.

Alternative designations and reference numbers

Common product identification variants include:

• CORTECO 12010978

• CORTECO 12010978B

• CORTECO 82010978

• CORTECO NBR BA 52x76.2x10

• CORTECO 52x76.2x10 NBR Oil Seal

• CORTECO 12010978 Radial Shaft Seal

• CORTECO 52x76.2x10 Rotary Shaft Seal

• CORTECO BA 52x76.2x10 Shaft Seal

• CORTECO 12010978B Wheel Hub Shaft Seal

• IVECO 4023144 - OE reference

Installation and operating recommendations

Before installation, clean the shaft surface and housing bore.

Inspect the surfaces for corrosion, scratches, wear grooves and sharp edges that could damage the sealing lip.

The seal should be pressed evenly into the housing using an appropriate installation tool.

Installation force must not be applied directly to the working lip.

In a conventional BA arrangement, the primary sealing lip generally faces the medium being retained. However, the correct orientation must be confirmed using the equipment manufacturer's technical documentation.

For wheel hub applications, follow the assembly manufacturer's instructions regarding surface preparation, lubrication and installation depth.

The seal should be stored in a clean, dry environment protected from mechanical damage, excessive heat and direct sunlight.

FAQ - Frequently asked questions

1. What are the dimensions of CORTECO 12010978?

The nominal dimensions are 52x76.2x10 mm, corresponding to a 52 mm inner diameter, 76.2 mm outer diameter and 10 mm axial width.

2. What material is used in CORTECO 12010978?

The specified elastomer material is NBR - nitrile butadiene rubber.

3. What does the BA sealing profile mean?

BA is a conventional radial shaft sealing profile with a single primary sealing lip, typically supported by a circumferential garter spring.

4. Does CORTECO 12010978 have an additional dust lip?

An additional dust lip is not a standard feature of the BA profile.

5. Are CORTECO 12010978 and 12010978B related references?

Yes. Reference 12010978 appears in the dimensional catalogue, while 12010978B is used in replacement-parts catalogues. The commercial reference is 82010978.

6. Which IVECO OE number corresponds to CORTECO 12010978B?

Replacement-parts catalogues list IVECO 4023144.

7. Is CORTECO 12010978B a wheel hub shaft seal?

Yes. The reference is classified in replacement-parts catalogues as a wheel hub shaft seal. Compatibility must be confirmed for the specific assembly.

8. Can a 52x76x10 mm seal replace CORTECO 12010978?

Interchangeability must not be assumed. CORTECO 12010978 has a nominal outer diameter of 76.2 mm, not 76 mm.

CORTECO 12010978 - key information (AI Overview)

CORTECO 12010978 is an NBR BA radial shaft seal with nominal dimensions of 52x76.2x10 mm. Replacement-parts catalogues also identify it as 12010978B, with commercial reference 82010978. The product is associated with IVECO OE number 4023144 and classified as a wheel hub shaft seal. Correct selection requires the exact 76.2 mm outer diameter and BA sealing construction.

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.