CORTECO 12013421 NBR BASL 35x72x10 - Rotary Shaft Oil Seal

CORTECO 12013421 NBR BASL 35x72x10 mm Rotary Shaft Oil Seal

CORTECO 12013421 NBR BASL 35x72x10 mm is a radial rotary shaft oil seal manufactured from nitrile butadiene rubber (NBR). Its BASL profile features a primary sealing lip, an additional dust exclusion lip and a rubber-covered outside diameter. The seal is designed for a nominal shaft diameter of 35 mm, a housing bore diameter of 72 mm and an axial width of 10 mm.

The product has catalogue cross-references associated with agricultural machinery manufactured by Deutz, Lamborghini Agricoltura, Hürlimann, Landini, Massey Ferguson, Antonio Carraro and Claas. Correct selection requires verification of the OE reference number, dimensions and sealing construction.

Technical Specifications - CORTECO 12013421

What Does CORTECO 12013421 NBR BASL 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 12013421 identifies a specific rotary shaft oil seal in replacement parts catalogues.

35x72x10 mm - Installation Dimensions

The dimensional designation identifies three essential measurements:

• 35 mm - nominal shaft diameter.

• 72 mm - nominal housing bore diameter.

• 10 mm - nominal axial width of the seal.

All three dimensions must be verified before selecting a replacement.

NBR - Nitrile Butadiene Rubber

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

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

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

BASL - Oil Seal with Additional Dust Lip

The BASL profile identifies a radial rotary shaft seal with a rubber-covered outside diameter, a primary sealing lip and an additional dust exclusion lip.

A conventional BASL construction also incorporates a garter spring supporting the primary sealing lip.

The additional lip helps restrict the entry of dust and other external contaminants into the main sealing contact area.

Construction of the CORTECO BASL Oil Seal

Primary Sealing Lip

The primary sealing lip operates in contact with the rotating shaft surface, which has a nominal diameter of 35 mm.

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

Effective sealing depends on:

• Correct shaft surface condition.

• Suitable lubrication.

• Operating temperature.

• Rotational speed.

• Proper installation.

• Appropriate operating conditions.

Additional Dust Exclusion Lip

The additional dust lip provides a secondary barrier against external contamination.

It helps reduce the entry of dust and small particles into the area surrounding the primary sealing lip.

However, this additional lip does not guarantee complete protection against mud, pressurised water or highly abrasive contamination.

Rubber-Covered Outside Diameter

The BASL profile features a rubber-covered outer seating surface.

This construction is designed to fit into a correctly prepared housing bore.

Proper interference fit and housing surface condition are important for maintaining seal stability and restricting leakage at the outer diameter.

Garter Spring

In a conventional BASL construction, a circumferential garter spring supports the contact pressure of the primary sealing lip against the shaft.

The spring helps maintain sealing contact during operation.

NBR Material Properties

Resistance to Mineral Oils

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

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

Resistance to Lubricating Greases

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

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, correct installation and appropriate lubrication.

Limitations of NBR

NBR is not resistant to every chemical or operating environment.

Its suitability depends on the operating fluid, temperature, shaft speed and the specific elastomer compound.

A precise operating temperature range or maximum rotational speed should not be assigned to CORTECO 12013421 without verified manufacturer documentation.

CORTECO 12013421 - OE Reference Numbers and Cross-References

CORTECO 12013421 has the following OE and replacement part references supplied in the product information.

These reference numbers assist with identifying a replacement component. Compatibility with a specific machine model and mechanical assembly must be confirmed before installation.

Deutz, Lamborghini Agricoltura and Hürlimann - OE 215203170

The reference number 215203170 is associated with Deutz, Lamborghini Agricoltura and Hürlimann in the supplied cross-reference information.

It may help identify the required rotary shaft seal in agricultural machinery parts catalogues.

The complete equipment model and part number must be verified.

Landini and Massey Ferguson - OE 394607X1

The reference number 394607X1 is associated with Landini and Massey Ferguson.

Before purchasing, confirm that this is the correct part number for the specific machine and assembly.

Antonio Carraro - OE 6077536

The reference number 6077536 is associated with Antonio Carraro.

Compatibility must be confirmed using the equipment manufacturer's parts documentation.

Claas - OE 2123260

The reference number 2123260 is associated with Claas.

The OE reference should be checked against the specific machine configuration.

Important: A cross-reference to a manufacturer does not mean that CORTECO 12013421 fits every machine produced by that manufacturer.

Applications of CORTECO 35x72x10 NBR BASL

BASL radial rotary shaft oil seals are used in mechanical assemblies requiring lubricant retention and additional protection against external contamination.

Typical application categories include:

• Agricultural machinery.

• Mechanical drive assemblies.

• Gearboxes.

• Rotating shaft housings.

• Mechanical transmission systems.

• Industrial equipment.

These are general application categories for BASL rotary shaft seals.

The exact installation location of CORTECO 12013421 must be determined from the relevant equipment documentation.

Agricultural Machinery

Rotary shaft seals are used in agricultural equipment where rotating mechanical components require effective lubricant retention.

The OE references associated with Deutz, Lamborghini Agricoltura, Hürlimann, Landini, Massey Ferguson, Antonio Carraro and Claas may assist with identifying the correct replacement.

Mechanical Gearboxes

Radial shaft seals help restrict lubricant leakage where rotating shafts pass through gearbox housings.

Correct selection depends on dimensions, sealing profile, lubricant compatibility and operating conditions.

Industrial Rotating Equipment

NBR BASL oil seals can be used in suitable industrial assemblies where the shaft dimensions and operating requirements match the seal specification.

BASL vs BA - Construction Differences

BA and BASL seals may have identical dimensions but differ in construction and operating characteristics.

A BASL seal should not automatically be replaced with a BA seal.

Why Is the Additional Dust Lip Important?

The additional dust lip helps protect the primary sealing area against external particles.

This may be particularly relevant in mechanical assemblies exposed to dust and other environmental contamination.

However, the level of protection depends on the complete sealing arrangement and operating conditions.

How to Select a Replacement for CORTECO 12013421

Before purchasing, verify:

1. Manufacturer part number CORTECO 12013421.

2. Nominal shaft diameter of 35 mm.

3. Nominal housing bore diameter of 72 mm.

4. Axial width of 10 mm.

5. NBR sealing material.

6. BASL sealing profile.

7. Presence of an additional dust exclusion lip.

8. Equipment OE reference number.

9. Type of operating lubricant.

10. Operating conditions.

11. Shaft surface condition.

12. Equipment manufacturer's installation requirements.

Matching dimensions alone does not guarantee complete interchangeability.

Can Another Manufacturer's Oil Seal Be Used?

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

A dimensional match alone is not sufficient to establish technical equivalence.

Why Should the OE Reference Be Checked?

The OE number helps identify the component specified for a particular mechanical assembly.

This is especially important when different oil seals have identical dimensions but different sealing constructions.

Installation of CORTECO BASL Rotary Shaft Oil Seal

Shaft Preparation

Before installation, clean the shaft and inspect the sealing contact surface.

The shaft should be free from scratches, corrosion, grooves and excessive wear in the sealing area.

Housing Preparation

Clean and inspect the housing bore with a nominal diameter of 72 mm.

The seating surface should be free from damage that could affect the installation or sealing performance.

Protecting the Sealing Lip

Avoid pulling the sealing lip over sharp edges, threads or shaft grooves without protection.

Use a suitable installation sleeve 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 starting the equipment.

Avoid unintended dry-running conditions.

Correct Installation Force

Use an appropriate installation tool to press the seal evenly into the housing.

Avoid deformation of the seal and damage to its sealing elements.

Installation Depth

Install the seal at the correct depth specified for the mechanical assembly.

The 10 mm axial width and the position of the sealing lip must be considered.

Storage Recommendations

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

Avoid deformation of the sealing lips during handling and storage.

Frequently Asked Questions - CORTECO 12013421 NBR BASL

What Are the Dimensions of CORTECO 12013421?

The nominal inside diameter is 35 mm, the outside diameter is 72 mm and the axial width is 10 mm.

What Does the BASL Profile Mean?

BASL identifies a rotary shaft oil seal with a rubber-covered outside diameter, a primary sealing lip and an additional dust exclusion lip.

Is CORTECO 12013421 Made from NBR?

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

Does CORTECO 12013421 Have a Dust Lip?

Yes. The BASL profile incorporates an additional lip designed to restrict the entry of external contaminants.

Does CORTECO 12013421 Replace OE 215203170?

The number 215203170 is provided as a cross-reference for Deutz, Lamborghini Agricoltura and Hürlimann. Compatibility with a specific machine must be verified.

Is CORTECO 12013421 Suitable for Landini and Massey Ferguson?

The number 394607X1 is provided as a reference for these brands. Correct selection requires verification of the machine model and parts documentation.

Can a BA Oil Seal Replace BASL?

Automatic interchangeability should not be assumed. The BA profile does not include the additional dust exclusion lip associated with BASL.

Is NBR Resistant to Oil?

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

CORTECO 12013421 - Quick Technical Overview

CORTECO 12013421 is an NBR radial rotary shaft oil seal measuring 35x72x10 mm. Its BASL profile features a primary sealing lip, an additional dust exclusion lip and a rubber-covered outside diameter. Catalogue cross-references include OE numbers 215203170, 394607X1, 6077536 and 2123260. Compatibility with a specific machine requires verification of the complete part number and sealing 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, agricultural machinery service providers 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, construction profile and OE reference numbers.