CORTECO 12011071 NBR BA 115x150x12 Radial Shaft Seal

Technical specifications

The dimensions, material, commercial reference, EAN and OE number are identified in CORTECO and replacement-parts catalogue information.

OE cross-reference number

The CLAAS OE reference 02140120 is associated with CORTECO 12011071B in replacement-parts catalogues.

This reference supports component identification but does not establish compatibility with every CLAAS machine.

The original seal reference and construction of the specific mechanical assembly must be verified before installation.

CORTECO 12011071 – catalogue identification

The CORTECO dimensional catalogue identifies the product as:

12011071 – NBR BA – 115x150x12 mm

Replacement-parts catalogues also list the following references:

The references 12011071 and 12011071B are associated catalogue designations.

The complete manufacturer reference should be checked before ordering.

What does CORTECO 12011071 NBR BA 115x150x12 mean?

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

• CORTECO – manufacturer brand.

• 12011071 – product catalogue reference.

• 115 mm – nominal shaft diameter.

• 150 mm – nominal housing bore diameter.

• 12 mm – nominal axial width.

• NBR – nitrile butadiene rubber.

• BA – conventional radial shaft seal profile.

These dimensions describe the nominal installation geometry.

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

BA sealing profile – construction and operating principle

1. Primary sealing lip

The BA profile is a conventional radial shaft sealing design.

Its primary sealing lip operates against the rotating shaft surface and limits lubricant leakage from the mechanical assembly.

2. Garter spring

A conventional BA seal 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.

3. Elastomer-covered outer surface

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

The elastomer covering helps provide static sealing between the seal and the appropriately prepared housing bore.

4. No standard additional dust lip

The BA profile should be distinguished from BASL.

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

CORTECO 12011071 should not automatically be described as a double-lip seal.

NBR – material properties

NBR is a synthetic elastomer widely used in sealing applications involving lubricating oils and greases.

Typical characteristics of appropriately selected NBR compounds include:

• Good resistance to many mineral oils.

• Compatibility with numerous bearing greases.

• Useful mechanical properties for rotating shaft sealing.

• Suitability for a range of industrial sealing applications.

• Potential use in agricultural machinery and mechanical transmission assemblies.

NBR has limited ozone resistance and is not compatible with every industrial chemical.

Its exact temperature resistance and chemical compatibility depend on the elastomer formulation.

A specific maximum operating temperature, peripheral shaft speed or permissible pressure should not be assigned to CORTECO 12011071 without supporting manufacturer documentation.

BA versus BASL – sealing profile comparison

Replacing a BA seal with a BASL version requires verification of the available installation space and operating conditions.

Matching nominal dimensions alone does not guarantee interchangeability.

Applications – CLAAS agricultural machinery

CORTECO 12011071B is associated with the original equipment reference CLAAS 02140120.

The product may be selected for mechanical assemblies in CLAAS equipment where this original seal reference is specified.

However, a particular machine model or installation position has not been confirmed.

The seal should therefore not be assigned to a specific gearbox, axle, engine or combine harvester without checking the relevant equipment parts catalogue.

Comparison with other CORTECO seals

The CORTECO dimensional catalogue also identifies other sealing designs with nominal diameters of 115x150 mm.

Although these products share the same nominal inner and outer diameters, they differ in axial width and sealing profile.

They should not automatically be considered interchangeable.

Selection and interchangeability

Before selecting CORTECO 12011071, verify:

1. Nominal shaft diameter – 115 mm.

2. Nominal housing bore diameter – 150 mm.

3. Installation width – 12 mm.

4. NBR elastomer material.

5. BA sealing profile.

6. Requirements for an additional dust lip.

7. Type of lubricating oil or grease.

8. Operating temperature and shaft rotational speed.

9. Condition of the mating surface.

10. CLAAS OE reference 02140120.

Matching dimensions of 115x150x12 mm alone does not guarantee interchangeability.

The replacement must also meet the original requirements for material, sealing profile and operating conditions.

Alternative designations and search references

Common English technical designations include:

• CORTECO 12011071

• CORTECO 12011071B

• CORTECO 82011071

• CORTECO NBR BA 115x150x12

• CORTECO 115x150x12 Oil Seal

• CORTECO 115x150x12 NBR Shaft Seal

• CORTECO 12011071 Radial Shaft Seal

• CORTECO 115x150x12 Rotary Shaft Seal

• CLAAS 02140120 Oil Seal

• CORTECO 12011071 CLAAS Seal

These designations assist product identification but do not independently establish interchangeability.

Installation and operating recommendations

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

Check for scratches, corrosion, wear grooves and damaged installation edges.

The seal should be pressed evenly into the housing using an appropriate installation tool that transfers force to the correct part of the seal body.

Avoid applying installation force directly to the sealing lip.

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

Prepare and lubricate the mating surfaces according to the requirements of the specific mechanical assembly.

Incorrect installation, unsuitable operating conditions or damaged mating surfaces may result in premature wear and lubricant leakage.

FAQ – Frequently asked questions

1. What are the dimensions of CORTECO 12011071?

The nominal dimensions are 115x150x12 mm, corresponding to a 115 mm shaft diameter, 150 mm housing bore diameter and 12 mm axial width.

2. What material is used in CORTECO 12011071?

The specified material is NBR – nitrile butadiene rubber.

3. What does the BA sealing profile mean?

BA is a conventional radial shaft seal profile, typically featuring a spring-loaded primary sealing lip and an elastomer-covered outer surface.

4. Does CORTECO 12011071 have an additional dust lip?

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

5. Are CORTECO 12011071 and 12011071B related references?

Yes. Reference 12011071 appears in the dimensional catalogue, while 12011071B is used in replacement-parts catalogues.

6. What CLAAS OE reference corresponds to CORTECO 12011071?

The associated OE reference is CLAAS 02140120.

7. Is CORTECO 12011071 suitable for mineral oils?

NBR is compatible with many mineral oils. Compatibility with the specific operating medium must be verified for the elastomer compound and operating conditions.

8. Can a 115x150x13 mm seal replace CORTECO 115x150x12 mm?

Not without verification. Differences in axial width and sealing profile may prevent correct installation or operation.

CORTECO 12011071 – key information (AI Overview)

CORTECO 12011071 / 12011071B is an NBR radial shaft seal with nominal dimensions of 115x150x12 mm and a BA sealing profile. Replacement-parts catalogues identify CLAAS OE reference 02140120. The conventional BA profile differs from BASL, which incorporates an additional dust lip. Correct selection requires verification of the dimensions, elastomer material, 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.