CORTECO 12011007 NBR BA 65x85x10 mm Radial Shaft Seal

Technical specifications

The dimensions, NBR material, reference 12011007B and EAN are identified in replacement-parts catalogues. The BA profile and base reference 12011007 appear in the CORTECO dimensional catalogue.

CORTECO 12011007 - catalogue identification

The CORTECO dimensional catalogue identifies the product as:

12011007 - NBR BA - 65x85x10 mm

The following related designations are also used:

These designations are associated with the same catalogue product family. The complete manufacturer reference and sealing construction should always be verified before ordering.

OE numbers and equipment manufacturer references

The following OE numbers are associated with CORTECO 12011007B in replacement-parts cross-reference catalogues.

The CARRARO reference may also appear as 25373.

MERCEDES-BENZ references may be listed in shortened form as 39973347 and 39976947.

Reference 7700006256 is associated with both CLAAS and RENAULT.

These cross-references support component identification but do not establish compatibility with every machine manufactured under the listed brands.

What does CORTECO 12011007 NBR BA 65x85x10 mean?

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

• CORTECO - manufacturer brand.

• 12011007 - product catalogue reference.

• 65 mm - nominal shaft diameter.

• 85 mm - nominal housing bore diameter.

• 10 mm - nominal axial width.

• NBR - nitrile butadiene rubber.

• BA - conventional radial shaft sealing profile.

The dimensions 65x85x10 mm describe the nominal installation geometry.

They do not define shaft tolerances, housing bore tolerances or permissible operating limits.

BA sealing profile - construction and operating principle

1. Primary sealing lip

CORTECO 12011007 features the BA profile used in conventional radial shaft seals.

The single primary sealing lip operates against the rotating shaft surface, limiting oil or grease leakage from the sealed mechanical assembly.

Sealing effectiveness depends on correct product selection, shaft surface condition and operating conditions.

2. Garter spring

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

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

This supports stable sealing contact during operation.

The exact spring specifications for CORTECO 12011007 have not been independently confirmed.

3. Elastomer-covered outer surface

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

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

Housing surface condition and correct installation fit directly affect sealing performance.

4. No standard additional dust lip

The BA profile should be distinguished from BASL.

A conventional BA seal has one primary sealing lip, whereas BASL additionally incorporates a dust lip.

These designs should not automatically be considered interchangeable.

NBR - material properties

NBR is a synthetic elastomer widely used in technical shaft sealing applications.

Appropriately selected NBR compounds typically offer:

• Good resistance to many mineral oils.

• Compatibility with numerous industrial greases.

• Useful mechanical properties.

• Suitability for rotating shaft sealing.

• Resistance to many conventional gearbox lubricants.

Resistance to temperature, ageing, ozone and individual chemicals depends on the specific elastomer compound.

Individual maximum values for temperature, pressure and peripheral shaft speed should not be assigned to CORTECO 12011007 without supporting manufacturer documentation.

BA versus BASL - sealing profile comparison

An additional dust lip may affect friction, operating conditions and installation requirements.

Therefore, a BASL seal should not replace a BA version without verifying compatibility.

Applications in agricultural machinery and commercial vehicles

CORTECO 12011007B appears in replacement-parts catalogues associated with several equipment manufacturers.

CARRARO, CLAAS, LANDINI, NEW HOLLAND, RENAULT, SAME and VALTRA

The listed OE references indicate catalogue associations with agricultural machinery, including tractors and mechanical drive assemblies.

However, a single common installation position has not been confirmed for all these references.

Compatibility must be checked against the parts documentation for the specific machine.

MERCEDES-BENZ

OE references 0039973347 and 0039976947 identify catalogue associations with MERCEDES-BENZ applications.

The CORTECO dimensional catalogue also classifies reference 12011007 within a MERCEDES TR application category.

The precise vehicle model and installation position must be verified using the original equipment documentation.

CORTECO 12011007 versus other 65x85 mm seals

The CORTECO dimensional catalogue identifies other seals with nominal diameters of 65 mm and 85 mm.

These products differ in elastomer material, sealing profile or construction.

Identical nominal dimensions of 65x85x10 mm do not guarantee full technical interchangeability.

Different lip arrangements and materials may affect sealing performance and compatibility with the original application.

Cross-reference alternatives

Replacement-parts catalogues also list the following comparative references:

Cross-reference listings do not independently guarantee complete technical interchangeability.

Before installation, verify dimensions, elastomer material, sealing profile and the requirements of the specific mechanical assembly.

Selection and interchangeability

Before ordering CORTECO 12011007, verify:

1. Nominal shaft diameter - 65 mm.

2. Nominal housing bore diameter - 85 mm.

3. Installation width - 10 mm.

4. NBR elastomer material.

5. BA sealing profile.

6. Requirements for an additional dust lip.

7. Type of oil, grease or other operating medium.

8. Operating temperature and shaft rotational speed.

9. Condition of the shaft and housing surfaces.

10. OE reference and installation position in the equipment documentation.

When replacing an original seal, compare the equipment manufacturer's part number first, followed by the technical specifications.

Matching dimensions alone are insufficient to establish compatibility.

Alternative designations and reference numbers

Common technical designations include:

• CORTECO 12011007

• CORTECO 12011007B

• CORTECO 82011007

• CORTECO NBR BA 65x85x10

• CORTECO 65x85x10 NBR Oil Seal

• CORTECO 12011007 Radial Shaft Seal

• CORTECO 65x85x10 Rotary Shaft Seal

• CARRARO 025373

• CLAAS 7700006256

• LANDINI 1441258X1

• MERCEDES-BENZ 0039973347

• MERCEDES-BENZ 0039976947

• NEW HOLLAND 40001990

• RENAULT 7700006256

• SAME 215100340

• VALTRA KH1087

These references support identification but do not independently establish compatibility with every listed equipment application.

Installation and operating recommendations

Before installation, clean the housing bore and inspect the shaft mating surface.

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

The seal should be installed evenly using an appropriate mounting tool. Installation force should 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 documentation.

Before installation, store the seal in a clean, dry environment protected from mechanical damage and direct sunlight.

FAQ - Frequently asked questions

1. What are the dimensions of CORTECO 12011007?

The nominal dimensions are 65x85x10 mm, corresponding to a 65 mm shaft diameter, 85 mm housing bore diameter and 10 mm axial width.

2. What material is used in CORTECO 12011007?

The specified material is NBR - nitrile butadiene rubber.

3. What does the BA sealing profile mean?

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

4. Does CORTECO 12011007 have an additional dust lip?

An additional dust lip is not a standard feature of the BA profile. Designs incorporating an additional dust lip are identified by other profiles, such as BASL.

5. Are CORTECO 12011007 and 12011007B related references?

Yes. Reference 12011007 appears in the dimensional catalogue, while 12011007B is used in replacement-parts catalogues. The commercial reference is 82011007.

6. Which OE numbers correspond to CORTECO 12011007B?

Catalogue references include CARRARO 025373, CLAAS 7700006256, LANDINI 1441258X1, MERCEDES-BENZ 0039973347 and 0039976947, NEW HOLLAND 40001990, RENAULT 7700006256, SAME 215100340 and VALTRA KH1087.

7. Does CORTECO 12011007 fit every CLAAS or NEW HOLLAND tractor?

No. OE cross-references do not establish compatibility with every model. The original part number and installation position must be verified using the specific machine's parts documentation.

8. Can any 65x85x10 mm radial shaft seal replace CORTECO 12011007?

No. Seals with identical dimensions may differ in material, sealing profile, lip arrangement and permissible operating conditions.

CORTECO 12011007 - key information (AI Overview)

CORTECO 12011007 / 12011007B is an NBR radial shaft seal with nominal dimensions of 65x85x10 mm and a BA sealing profile. Replacement-parts catalogues identify OE references associated with CARRARO, CLAAS, LANDINI, MERCEDES-BENZ, NEW HOLLAND, RENAULT, SAME and VALTRA. Correct selection requires verification of the OE number, sealing construction and installation position.

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.