CORTECO 12016761 20x30/34x5/6.1 NBR BASF - Radial Shaft Seal

CORTECO 12016761 20x30/34x5/6.1 NBR BASF - Radial Shaft Seal

CORTECO 12016761 is an NBR radial shaft seal with BASF design and dimensions 20x30/34x5/6.1 mm. It has a 20 mm inside diameter, two characteristic outside diameters of 30 mm and 34 mm, and heights of 5 mm and 6.1 mm. Its stepped geometry is an important identification feature and distinguishes this reference from conventional 20x30x5 mm oil seals.

CORTECO 12016761 - product characteristics

CORTECO 12016761 should not be identified solely as a standard 20x30x5 mm oil seal.

Its complete dimensional specification is:

20x30/34x5/6.1 mm

Key identification data:

• manufacturer: CORTECO

• part number: 12016761

• product type: radial shaft seal

• design: BASF

• material: NBR

• inside diameter: 20 mm

• outside diameter 1: 30 mm

• outside diameter 2: 34 mm

• height 1: 5 mm

• height 2: 6.1 mm

Technical data

CORTECO 12016761 dimensions

The complete dimensions of the seal are:

20x30/34x5/6.1 mm

where:

• 20 mm - inside diameter

• 30 mm - first outside diameter

• 34 mm - second outside diameter

• 5 mm - first height

• 6.1 mm - second height

The 34 mm diameter and 6.1 mm height should not be omitted when identifying this product.

A simplified 20x30x5 mm description does not represent the complete geometry of CORTECO 12016761 and may result in confusion with a conventional radial shaft seal of a simpler design.

What does CORTECO 12016761 NBR BASF mean?

12016761 is the CORTECO catalogue reference identifying this specific product.

NBR identifies nitrile rubber as the elastomer material.

BASF is the CORTECO design designation specified for this reference.

The complete technical identification is therefore:

CORTECO 12016761 - NBR - BASF - 20x30/34x5/6.1 mm

When searching for a replacement, the complete designation and geometry should be compared rather than only the basic inside and outside diameters.

NBR material

CORTECO 12016761 is manufactured from NBR, also known as nitrile rubber.

NBR is widely used in technical sealing components, particularly in applications involving contact with mineral oils and greases.

When selecting an alternative seal, the elastomer material should be verified together with the construction and complete dimensions.

BASF seal design

CORTECO specifies the construction of reference 12016761 as:

BASF

The BASF designation is an important part of the technical identification of this seal.

A seal with a 20 mm inside diameter and 30 mm basic outside diameter should not automatically be considered equivalent to CORTECO 12016761.

For this reference, the complete geometry:

20x30/34x5/6.1 mm

and the BASF design must be taken into account.

Why is the 20x30/34x5/6.1 mm dimension important?

CORTECO 12016761 has a more complex geometry than a conventional oil seal described by only three dimensions.

This product has:

• two outside diameters: 30 mm and 34 mm

• two height values: 5 mm and 6.1 mm

Searching only for a 20x30x5 mm seal may therefore return a different product.

When replacing an existing seal, the complete profile and all dimensional values should be compared.

CORTECO 12016761 vs CORTECO 12016761B

The reference:

CORTECO 12016761B

can also be found in parts databases and commercial catalogues.

For 12016761B, the same basic technical specification is commonly listed:

• NBR material

• BASF design

• 20 mm inside diameter

• 30 mm and 34 mm outside diameters

• 5 mm and 6.1 mm heights

Because 12016761 and 12016761B are not identically written catalogue references, the exact number printed on the packaging or specified in the supplier documentation should be retained for inventory and product identification.

EAN numbers assigned to different catalogue references should not be mixed without verification.

Alternative designations and search references

CORTECO 12016761 may be found under several search and catalogue formats:

• CORTECO 12016761

• 12016761 CORTECO

• CORTECO 12016761 NBR

• CORTECO 12016761 BASF

• CORTECO 12016761 NBR BASF

• CORTECO 12016761 20x30/34x5/6.1

• 12016761 20x30/34x5/6.1

• CORTECO BASF 20x30/34x5/6.1

• CORTECO 20x30/34x5/6.1

• CORTECO radial shaft seal 12016761

• CORTECO oil seal 12016761

• CORTECO 12016761B

The primary identification for this product remains:

CORTECO 12016761

CORTECO 12016761 vs standard 20x30 oil seals

CORTECO 12016761 should not automatically be replaced by a conventional 20x30 mm radial shaft seal.

Its complete geometry includes an additional 34 mm outside diameter and a 6.1 mm overall height.

Before considering an alternative, verify:

• inside diameter 20 mm

• outside diameter 30 mm

• additional outside diameter 34 mm

• height 5 mm

• overall height 6.1 mm

• NBR material

• BASF design

Matching only part of the dimensional specification does not establish full interchangeability.

Selection and interchangeability

Before purchasing CORTECO 12016761, verify:

1. CORTECO part number 12016761.

2. BASF design.

3. NBR material.

4. Inside diameter of 20 mm.

5. Outside diameters of 30 mm and 34 mm.

6. Heights of 5 mm and 6.1 mm.

7. Geometry of the removed seal.

8. Requirements of the specific installation.

The basic 20x30 mm dimensions alone are not sufficient to confirm interchangeability.

Application information

The verified CORTECO dimensional catalogue confirms reference 12016761 with NBR material, BASF design and dimensions 20x30/34x5/6.1 mm.

However, no specific vehicle manufacturer or OE application is provided for this reference in the verified dimensional table.

For this reason, the product should not be assigned to a specific vehicle, engine, gearbox or other assembly without additional application data.

This prevents incorrect vehicle compatibility information from being introduced into the product page.

Installation

Before installation, thoroughly clean the seal housing and inspect the mating surface.

Check:

• shaft surface condition

• housing condition

• absence of burrs and sharp edges

• correct seal orientation

• compatibility of all diameters and heights

During installation, force should be applied evenly. Avoid tilting the seal or damaging and permanently deforming the elastomer profile.

Because CORTECO 12016761 has a stepped geometry, the complete installation profile should correspond to the housing geometry.

FAQ

What are the dimensions of CORTECO 12016761?

CORTECO 12016761 has complete dimensions of 20x30/34x5/6.1 mm: 20 mm inside diameter, 30 mm and 34 mm outside diameters, and heights of 5 mm and 6.1 mm.

What material is CORTECO 12016761 made from?

The seal is manufactured from NBR, also known as nitrile rubber.

What design is CORTECO 12016761?

CORTECO specifies the design of reference 12016761 as BASF.

Is CORTECO 12016761 a 20x30x5 mm oil seal?

That description is incomplete. The complete catalogue dimensions are 20x30/34x5/6.1 mm.

Can a standard 20x30x5 mm oil seal replace CORTECO 12016761?

Interchangeability should not be assumed. CORTECO 12016761 has an additional 34 mm outside diameter, a 6.1 mm overall height and BASF construction.

What is the difference between CORTECO 12016761 and 12016761B?

Both references can be found in parts databases with the same basic NBR, BASF and 20x30/34x5/6.1 mm specification. However, they are not identically written catalogue numbers. The exact reference printed on the original packaging or supplier documentation should therefore be retained.

Is an OE vehicle application confirmed for CORTECO 12016761?

The verified CORTECO dimensional catalogue does not specify a vehicle manufacturer or OE application for reference 12016761. A specific vehicle application should therefore not be assigned without additional verification.

Are identical dimensions enough to select a replacement?

No. The complete geometry, BASF design, NBR material and requirements of the specific installation should also be checked.

CORTECO 12016761 - quick technical answer

CORTECO 12016761 is an NBR radial shaft seal with BASF design and complete dimensions of 20x30/34x5/6.1 mm. Its stepped geometry includes a 20 mm inside diameter, 30 and 34 mm outside diameters, and heights of 5 and 6.1 mm. A standard 20x30x5 seal should not automatically be considered interchangeable.

CORTECO 12016761 available from simmering.pl

CORTECO 12016761 NBR BASF is available from simmering.pl, a specialist supplier of radial shaft seals, technical sealing solutions, O-rings and bearings for industrial and technical customers.

Stock and technical service are located in Lublin, Poland. Products are shipped worldwide from stock in Poland.

For accurate identification, specify the complete CORTECO 12016761 reference and dimensions 20x30/34x5/6.1 mm.