CORTECO 12011044 NBR BA 90x120x12 mm Radial Shaft Seal

Technical specifications

The dimensions, material and sealing profile are identified in CORTECO catalogue listings. Reference 12011044B and the EAN are also found in replacement-parts catalogues.

CORTECO 12011044 - catalogue identification

The product is identified by the following designation:

12011044 - NBR BA - 90x120x12 mm

Replacement-parts catalogues also use:

CORTECO 12011044B - 90x120x12 mm - NBR BA

The base reference 12011044 and replacement-parts designation 12011044B are associated in catalogue listings.

What does CORTECO 12011044 NBR BA 90x120x12 mean?

• CORTECO - manufacturer brand.

• 12011044 - product catalogue reference.

• NBR - nitrile butadiene rubber.

• BA - conventional radial shaft sealing profile.

• 90 mm - nominal shaft diameter.

• 120 mm - nominal housing bore diameter.

• 12 mm - nominal axial width.

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

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 construction 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 the condition of the shaft contact surface, 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 shaft surface.

Detailed spring specifications for CORTECO 12011044 have not been confirmed in the available technical information.

3. Elastomer-covered outer surface

The standard BA construction typically 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.

Correct installation fit and housing surface condition are essential for maintaining sealing performance.

4. No standard additional dust lip

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

BA should not be confused with BASL, which incorporates an additional lip for protection against external contamination.

NBR - technical material properties

NBR is a technical elastomer widely 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.

Chemical and temperature resistance depend on the specific elastomer compound and operating conditions.

Individual maximum values for operating temperature, pressure and peripheral shaft speed have not been confirmed for CORTECO 12011044.

BA versus BASL - sealing profile comparison

Replacing a BA seal with a BASL version may affect friction, shaft contact conditions and installation requirements.

Identical nominal dimensions do not automatically establish interchangeability between the two profiles.

Applications of CORTECO 12011044

Wheel hub sealing

CORTECO 12011044B is classified in replacement-parts listings as a wheel hub shaft seal.

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

However, a specific list of compatible vehicle models and OE references has not been confirmed for this product.

Compatibility must therefore be verified against the technical documentation of the individual assembly.

Other rotating shaft mechanisms

NBR BA radial shaft seals can also be used in appropriately specified gearboxes, speed reducers and mechanical drive assemblies.

These are typical applications for this sealing construction, not additional confirmed applications for CORTECO part number 12011044.

Comparison with other CORTECO 90x120 mm radial shaft seals

CORTECO catalogues also contain radial shaft seals with the same nominal inner and outer diameters but different materials or sealing constructions.

This comparison demonstrates that different sealing designs can share identical nominal shaft and housing bore diameters.

None of the listed variants should automatically be considered interchangeable with CORTECO 12011044.

Selection and interchangeability

Before ordering CORTECO 12011044, verify:

1. Nominal shaft diameter - 90 mm.

2. Nominal housing bore diameter - 120 mm.

3. Installation width - 12 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. Original seal reference and installation position.

For wheel hub applications, it is particularly important to confirm the sealing construction specified by the assembly manufacturer.

Matching dimensions of 90x120x12 mm do not guarantee complete technical interchangeability.

Alternative designations and reference numbers

Common product identification variants include:

• CORTECO 12011044

• CORTECO 12011044B

• CORTECO NBR BA 90x120x12

• CORTECO 90x120x12 NBR Oil Seal

• CORTECO 12011044 Radial Shaft Seal

• CORTECO 90x120x12 Rotary Shaft Seal

• CORTECO BA 90x120x12 Shaft Seal

• CORTECO 12011044B Wheel Hub Shaft Seal

• NBR BA 90x120x12 Radial Oil Seal

No reliable vehicle manufacturer OE references have been confirmed for this exact product.

Installation and operating recommendations

Before installation, clean the housing bore and the shaft contact surface.

Inspect both surfaces for scratches, corrosion, 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 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 technical documentation of the equipment.

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

Store the seal 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 12011044?

The nominal dimensions are 90x120x12 mm, corresponding to a 90 mm inner diameter, 120 mm outer diameter and 12 mm axial width.

2. What material is used in CORTECO 12011044?

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 featuring a single primary sealing lip, typically supported by a circumferential garter spring.

4. Does CORTECO 12011044 have an additional dust lip?

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

5. Are CORTECO 12011044 and 12011044B related references?

Yes. Reference 12011044 identifies the product in dimensional listings, while 12011044B appears in replacement-parts catalogues.

6. Is CORTECO 12011044 a wheel hub shaft seal?

Reference 12011044B is classified as a wheel hub shaft seal in replacement-parts catalogues. Its suitability must be confirmed for the specific mechanical assembly.

7. What is the EAN for CORTECO 12011044B?

The EAN listed in product catalogues and offers is 3358960039293.

8. Can any 90x120x12 mm radial shaft seal replace CORTECO 12011044?

No. In addition to dimensions, the NBR material, BA sealing profile, lip construction and operating requirements must be verified.

CORTECO 12011044 - key information (AI Overview)

CORTECO 12011044 is an NBR BA radial shaft seal with nominal dimensions of 90x120x12 mm. Replacement-parts catalogues also identify it as 12011044B, with EAN 3358960039293. The product is classified, among other applications, as a wheel hub shaft seal. Correct selection requires verification of dimensions, material, sealing profile and compatibility with the specific mechanical 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.