CORTECO 12011404 NBR B2 110x140x13 - Rotary Shaft Oil Seal

CORTECO 12011404 NBR B2 110x140x13 mm Rotary Shaft Oil Seal

CORTECO 12011404 NBR B2 110x140x13 mm is a radial rotary shaft oil seal manufactured from nitrile butadiene rubber (NBR). It features a double metal case construction and a primary sealing lip. The B2 profile is characterised by its reinforced metal housing design without an additional dust exclusion lip. The seal is designed for a nominal shaft diameter of 110 mm, a housing bore diameter of 140 mm and an axial installation width of 13 mm.

The product is also listed under the commercial designation CORTECO 12011404B and is referenced in replacement parts catalogues for certain wheel hub and axle assemblies used in commercial vehicles and industrial machinery.

Technical Specifications - CORTECO 12011404

OE and comparison numbers are intended to assist part identification. Compatibility with a particular vehicle or machine must be verified using the relevant manufacturer's documentation.

What Does CORTECO 12011404 NBR B2 Mean?

CORTECO - Manufacturer

CORTECO is a brand within the Freudenberg Group, specialising in sealing solutions and technical components for automotive and industrial applications.

The manufacturer part number 12011404 identifies a specific radial rotary shaft seal measuring 110x140x13 mm, manufactured from NBR with a B2 construction profile.

110x140x13 mm - Installation Dimensions

The dimensional designation identifies three essential measurements:

• 110 mm - nominal shaft or sealing surface diameter.

• 140 mm - nominal housing bore diameter.

• 13 mm - nominal axial width of the seal.

All three dimensions must be checked when selecting a replacement.

NBR - Nitrile Butadiene Rubber

NBR is a synthetic elastomer widely used in industrial sealing components.

It generally offers good resistance to many mineral oils and lubricating greases.

Actual chemical and thermal resistance depends on the specific rubber compound and operating conditions.

B2 - Double Metal Case Profile

The B2 designation identifies a radial rotary shaft seal construction featuring a double metal case.

Its principal characteristics include:

• Exposed metal outside diameter.

• Reinforced double metal case construction.

• Primary sealing lip.

• No additional dust exclusion lip.

The B2 profile should not be confused with B2SL, which incorporates an additional protective lip.

Construction of the CORTECO B2 Oil Seal

Double Metal Case

The B2 profile incorporates a reinforced double metal case.

This construction provides structural rigidity and helps maintain the dimensional stability of the seal.

The exposed metal outside diameter is designed to fit directly into the housing bore.

Correct interference fit and suitable housing surface condition are particularly important for maintaining sealing performance at the outer diameter.

Primary Sealing Lip

The primary sealing lip operates in contact with the rotating shaft surface, which has a nominal diameter of 110 mm.

Its main function is to restrict leakage of oil or another compatible lubricant from the sealed assembly.

Effective sealing depends on:

• Shaft surface condition.

• Correct lubrication.

• Operating temperature.

• Rotational speed.

• Proper installation.

• Suitable operating pressure conditions.

Garter Spring

The conventional B2 radial shaft seal construction incorporates a circumferential garter spring that supports the contact pressure of the primary sealing lip.

The spring helps maintain sealing contact during operation.

No Additional Dust Exclusion Lip

The B2 profile does not include the additional dust exclusion lip associated with the B2SL design.

If the equipment operates in a heavily contaminated environment, the complete sealing arrangement must provide appropriate protection against external particles.

NBR Material Properties

Resistance to Mineral Oils

NBR generally provides good resistance to many mineral-based lubricating oils.

For this reason, it is widely used in mechanical assemblies and lubrication systems.

Resistance to Lubricating Greases

Nitrile rubber is commonly used in sealing applications involving compatible industrial greases.

The exact compatibility depends on the lubricant formulation and operating conditions.

Elastic Sealing Performance

The elastomeric sealing lip maintains contact with the rotating shaft surface.

Reliable operation requires suitable shaft surface quality and lubrication.

Limitations of NBR

NBR is not universally resistant to all chemicals or operating environments.

Its suitability depends on temperature, fluid compatibility, shaft speed and the formulation of the rubber compound.

A specific operating temperature range should not be assigned to this CORTECO seal without confirmation from the manufacturer's technical documentation.

CORTECO 12011404 - Wheel Hub and Axle Applications

CORTECO 12011404B appears in replacement parts catalogues as a radial shaft seal associated with wheel hub assemblies and selected rear axle applications.

Catalogue references may include the following equipment and vehicle brands:

• Mercedes-Benz.

• John Deere.

• JCB.

• New Holland.

• Weidemann.

These references do not establish compatibility with every vehicle or machine manufactured by these brands.

Before purchasing, verify the original equipment part number, equipment model, assembly version and seal dimensions.

Mercedes-Benz OE Reference Numbers

The following reference numbers appear in replacement parts catalogues:

• 0009977446.

• 0089976246.

These numbers may assist in identifying a suitable replacement seal.

Compatibility with a specific vehicle must be confirmed using the vehicle manufacturer's parts catalogue.

ELRING Comparison Number

ELRING 612.103 is listed as a comparison reference.

Before selecting an alternative product, verify its construction, dimensions and technical requirements.

Applications of CORTECO 110x140x13 NBR B2

Radial rotary shaft seals with metal cases are used in mechanical assemblies requiring lubricant retention around rotating shafts.

Typical application categories include:

• Wheel hub assemblies.

• Axle assemblies.

• Mechanical gearboxes.

• Agricultural machinery.

• Commercial vehicles.

• Rotating mechanical systems.

• Industrial drive assemblies.

These are general application categories and catalogue references, not a confirmed list of every compatible machine or vehicle.

Wheel Hub Assemblies

Rotary shaft seals help restrict lubricant leakage where rotating components pass through a housing.

Correct seal selection depends on the hub design, shaft dimensions and operating conditions.

Rear Axle Assemblies

Radial shaft seals are used in suitable axle arrangements to retain lubricants and protect internal mechanical components.

Compatibility must be verified against the specific axle design.

Agricultural and Industrial Machinery

NBR rotary shaft seals are used in suitable machinery applications involving compatible lubricants and operating conditions.

The full manufacturer part number remains essential for accurate identification.

B2 vs B2SL - Construction Differences

The difference in dust lip construction may affect operating conditions and installation requirements.

A B2 seal should not automatically be replaced with a B2SL seal.

CORTECO 12011404 vs CORTECO 01003701

Both products are listed in replacement parts catalogues with dimensions of 110x140x13 mm and NBR sealing material.

Although the dimensions and material match, the products differ in construction.

Replacement requires verification of the equipment manufacturer's specifications.

Selection and Interchangeability of CORTECO 12011404

Before purchasing, verify:

1. Manufacturer part number CORTECO 12011404.

2. Nominal shaft diameter of 110 mm.

3. Nominal housing bore diameter of 140 mm.

4. Axial width of 13 mm.

5. NBR sealing material.

6. B2 seal profile.

7. Double metal case construction.

8. Type of operating fluid.

9. Operating temperature.

10. Shaft rotational speed.

11. Shaft surface condition.

12. Equipment manufacturer's installation requirements.

Matching dimensions alone do not guarantee interchangeability.

Why Is the B2 Profile Important?

The B2 profile identifies a specific construction with a double metal case and primary sealing lip.

A seal with the same dimensions but a different profile may have different installation or operating characteristics.

Can Another Manufacturer's Seal Be Used?

An alternative may be considered after verifying the complete dimensions, material, construction, sealing profile and operating requirements.

An identical dimensional designation is not sufficient to confirm technical equivalence.

Installation of CORTECO B2 Rotary Shaft Oil Seal

Shaft Preparation

Before installation, inspect the shaft surface for scratches, corrosion, grooves and excessive wear.

Surface damage in the sealing contact area can cause premature lip wear and leakage.

Housing Preparation

The metal case requires a correctly prepared housing bore.

Check dimensional accuracy, cleanliness and surface condition before installation.

Press-Fitting the Seal

Use a suitable installation tool to apply uniform force when pressing the seal into the housing.

Avoid deformation of the metal case.

Protecting the Sealing Lip

Do not pull the sealing lip over sharp edges, threads or shaft grooves without suitable protection.

An installation sleeve should be used where necessary.

Correct Installation Orientation

In typical oil-retaining applications, the primary sealing lip faces the lubricant being retained.

The final installation orientation must follow the equipment manufacturer's instructions.

Lubrication Before Operation

Provide suitable lubrication at the sealing contact surface before operation.

Unintended dry running may damage the sealing lip.

Installation Depth

The oil seal must be installed at the correct depth for the mechanical assembly.

The 13 mm axial width and sealing lip position must be considered.

Storage Recommendations

Store the seal in a clean, dry environment, away from excessive heat, direct sunlight and substances that may damage the elastomer.

Avoid deformation or damage to the sealing lip during handling and storage.

Frequently Asked Questions - CORTECO 12011404 NBR B2

What Are the Dimensions of CORTECO 12011404?

The nominal inside diameter is 110 mm, the outside diameter is 140 mm and the axial width is 13 mm.

What Does the B2 Profile Mean?

B2 identifies a radial rotary shaft seal with a double metal case and a primary sealing lip, without an additional dust exclusion lip.

Is CORTECO 12011404 Made from NBR?

Yes. The sealing material is nitrile butadiene rubber, commonly abbreviated as NBR.

Does CORTECO 12011404 Have a Metal Case?

Yes. The B2 profile incorporates a reinforced double metal case construction.

Does CORTECO 12011404 Have a Dust Lip?

No. The B2 profile does not include the additional dust exclusion lip associated with B2SL.

Is CORTECO 12011404 Suitable for Mercedes-Benz Vehicles?

Replacement parts catalogues include Mercedes-Benz reference numbers 0009977446 and 0089976246. Compatibility with a particular vehicle must be verified.

Can CORTECO 01003701 Replace 12011404?

Direct interchangeability should not be assumed. CORTECO 01003701 has a B2SL profile, while 12011404 has a B2 profile.

Is an NBR Oil Seal Suitable for Mineral Oil?

NBR generally provides good resistance to many mineral oils. Compatibility with the specific lubricant and operating conditions must be confirmed.

CORTECO 12011404 - Quick Technical Overview

CORTECO 12011404 is an NBR radial rotary shaft oil seal measuring 110x140x13 mm. Its B2 profile features a reinforced double metal case and a primary sealing lip without an additional dust exclusion lip. Also listed as 12011404B, it appears in replacement parts catalogues for selected wheel hub and axle assemblies. Compatibility requires verification of the complete part number and seal construction.

CORTECO Rotary Shaft Oil Seals at simmering.pl

CORTECO rotary shaft oil seals are available through simmering.pl, a specialist supplier of industrial sealing components, rolling bearings and mechanical replacement parts.

We serve industrial companies, maintenance departments, mechanical workshops and B2B customers.

Our warehouse and order processing operations are located in Lublin, Poland.

We supply customers throughout Poland and the European Union and offer worldwide shipping.

We also assist customers in identifying rotary shaft oil seals by manufacturer part number, dimensions, elastomer material and construction profile.