Rotary Shaft Seal CORTECO 01031966 Oil Seal 28,56x41,23x6,35

CORTECO 01031966 NBR B1SLX2 28.56x41.23x6.35 mm - Radial Shaft Oil Seal Simmerring

CORTECO 01031966 NBR B1SLX2 28.56x41.23x6.35 mm is a radial shaft oil seal from the Simmerring family. Its precise catalogue identification combines NBR material, B1SLX2 profile and the non-standard dimensions 28.56x41.23x6.35 mm. The product is also referenced as CORTECO 01031966B and 82031966. A confirmed JOHN DEERE reference is AT21780.

Technical data - CORTECO 01031966

What does CORTECO 01031966 NBR B1SLX2 mean?

The complete technical identification is:

CORTECO 01031966 NBR B1SLX2 28.56x41.23x6.35 mm

CORTECO - manufacturer of the sealing component.

01031966 - base CORTECO product number.

01031966B - aftermarket catalogue reference used for this product.

82031966 - additional CORTECO reference associated with the seal.

NBR - nitrile rubber used as the elastomer material.

B1SLX2 - exact CORTECO profile designation.

28.56x41.23x6.35 mm - precise catalogue dimensions.

Exact dimensions of CORTECO 01031966

The CORTECO dimensional catalogue specifies:

28.56x41.23x6.35 mm

where:

• d = 28.56 mm - inside diameter
• D = 41.23 mm - outside diameter
• B = 6.35 mm - width

These are non-standard metric dimensions and should be retained in their complete form when identifying the seal.

Some aftermarket catalogues may show rounded values such as:

29x41.23x6 mm

For technical identification, however, the precise CORTECO catalogue dimensions:

28.56x41.23x6.35 mm

should be used.

Why are the precise 28.56x41.23x6.35 mm dimensions important?

The decimal dimensions are an important part of the identity of CORTECO 01031966.

Values of:

28.56 mm

41.23 mm

and:

6.35 mm

should not be casually rounded.

Searching only for a 29x41x6 mm seal could lead to a different product with different fitting characteristics.

For maintenance, repair and technical procurement, the complete manufacturer dimensions provide a more reliable basis for identification.

NBR - nitrile rubber

CORTECO specifies:

NBR - Nitrile Butadiene Rubber

for CORTECO 01031966.

NBR is widely used in radial shaft seals and other technical sealing components, particularly in applications involving compatible oils, greases and lubricants.

Correct seal selection should consider:

• operating medium
• lubricant specification
• operating temperature
• shaft speed
• shaft surface condition
• lubrication conditions
• assembly design
• equipment manufacturer requirements

A specific operating temperature range should not be assigned to CORTECO 01031966 solely from generic NBR material data. Actual operating limits depend on the exact compound and application.

B1SLX2 profile

The exact CORTECO profile designation is:

B1SLX2

The profile is an important part of the technical identification of CORTECO 01031966.

Product data for the exact reference also confirms an additional dust lip.

When evaluating an alternative seal, the complete combination should therefore be considered:

NBR + B1SLX2 + 28.56x41.23x6.35 mm

A different radial shaft seal with similar dimensions should not automatically be considered technically equivalent.

Additional dust lip

CORTECO 01031966B incorporates an:

additional dust lip

The auxiliary lip helps protect the primary sealing area from external contamination.

Depending on the operating environment, this can include:

• dust
• dirt
• fine particles
• moisture
• general operating contamination

The additional dust lip is an important construction feature when comparing CORTECO 01031966 with possible replacement seals.

CORTECO 01031966 and JOHN DEERE AT21780

A confirmed reference associated with this product is:

JOHN DEERE AT21780

The reference relationship is:

CORTECO 01031966 / 01031966B

CORTECO 82031966

JOHN DEERE AT21780

This is particularly useful when identifying the seal for agricultural, construction or industrial machinery applications.

The OE reference should be checked together with the exact dimensions and installation position.

JOHN DEERE applications

CORTECO 01031966B is cross-referenced with:

JOHN DEERE AT21780

This identifies the seal for specified JOHN DEERE machinery applications.

It should not, however, be interpreted as universal compatibility with every JOHN DEERE tractor, agricultural machine or construction machine.

For a specific application, verify:

• OE reference AT21780
• machine model
• serial number where relevant
• assembly in which the seal is installed
• exact dimensions
• B1SLX2 profile

Alternative designations and reference numbers

Useful identification and search variants include:

• CORTECO 01031966
• CORTECO 01031966B
• 01031966 CORTECO
• 01031966B CORTECO
• CORTECO 82031966
• CORTECO 01031966 NBR
• CORTECO 01031966 B1SLX2
• CORTECO 01031966 NBR B1SLX2
• CORTECO B1SLX2
• CORTECO B1SLX2 28.56x41.23x6.35
• CORTECO 01031966 28.56x41.23x6.35
• CORTECO 01031966B 28.56x41.23x6.35
• Simmerring 28.56x41.23x6.35
• NBR Simmerring 28.56x41.23x6.35
• NBR oil seal 28.56x41.23x6.35
• radial shaft seal 28.56x41.23x6.35
• JOHN DEERE AT21780
• AT21780 oil seal
• AT21780 shaft seal

Confirmed references:

CORTECO

• 01031966
• 01031966B
• 82031966

JOHN DEERE

• AT21780

CORTECO 01031966 vs seals with similar dimensions

CORTECO 01031966 should not be selected only according to approximate dimensions.

Radial shaft seals can differ in:

• exact inside diameter
• exact outside diameter
• width
• elastomer material
• profile
• sealing-lip construction
• intended application

For this product, the key identification combination is:

28.56x41.23x6.35 mm + NBR + B1SLX2

For the relevant JOHN DEERE applications, also verify:

AT21780

Can a 29x41x6 mm oil seal replace CORTECO 01031966?

A seal described as:

29x41x6 mm

should not automatically be considered a replacement for CORTECO 01031966.

The precise CORTECO dimensions are:

28.56x41.23x6.35 mm

The dimensional differences affect all three primary measurements.

In addition, CORTECO 01031966 is identified by:

• NBR material
• B1SLX2 profile
• additional dust lip
• CORTECO references
• JOHN DEERE AT21780 cross-reference

Technical interchangeability should therefore be established using the complete specification rather than rounded dimensions.

How to select CORTECO 01031966 correctly

The safest starting point is the exact CORTECO reference:

01031966 / 01031966B

or the confirmed JOHN DEERE reference:

AT21780

Then verify:

1. inside diameter - 28.56 mm
2. outside diameter - 41.23 mm
3. width - 6.35 mm
4. NBR material
5. B1SLX2 profile
6. additional dust lip
7. exact installation position

Selection and interchangeability checklist

Before ordering, verify:

• CORTECO 01031966 / 01031966B
• CORTECO 82031966
• JOHN DEERE AT21780, where applicable
• d = 28.56 mm
• D = 41.23 mm
• B = 6.35 mm
• NBR material
• B1SLX2 profile
• additional dust lip
• exact installation position

Similar or rounded dimensions do not confirm full technical interchangeability.

Installation of CORTECO 01031966

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

Inspect:

• shaft sealing surface
• wear grooves
• scratches
• burrs
• corrosion
• housing condition
• alignment
• shaft runout
• excessive play in mating components

Install the seal evenly and squarely using a suitable installation tool.

Protect the primary sealing area and additional dust lip against cutting, folding or deformation during installation.

What should be checked if the previous seal was leaking?

If the previous Simmerring was leaking, inspect the surrounding components before installing a new CORTECO 01031966.

Check:

• shaft sealing surface
• wear groove
• shaft runout
• excessive play
• bearing or guiding element condition
• alignment
• seal housing
• lubricant type and level
• assembly breather, where applicable

Replacing the seal alone may not permanently solve a leak caused by shaft wear, excessive clearance, misalignment or another mechanical fault.

FAQ - CORTECO 01031966

What are the dimensions of CORTECO 01031966?

The precise catalogue dimensions are 28.56x41.23x6.35 mm: 28.56 mm inside diameter, 41.23 mm outside diameter and 6.35 mm width.

What material is CORTECO 01031966 made from?

CORTECO catalogue data specifies NBR, or nitrile rubber.

What is the profile of CORTECO 01031966?

The exact profile designation is B1SLX2.

Does CORTECO 01031966 have an additional dust lip?

Yes. Product data for CORTECO 01031966B confirms an additional dust lip.

What JOHN DEERE reference corresponds to CORTECO 01031966?

The confirmed JOHN DEERE reference is AT21780.

Is 82031966 another reference for CORTECO 01031966?

Yes. 82031966 is an additional CORTECO reference associated with 01031966B.

Why do some catalogues list 29x41.23x6 mm?

Some aftermarket catalogue systems use rounded dimensions. The CORTECO dimensional catalogue gives the more precise dimensions 28.56x41.23x6.35 mm, which should be preferred for technical identification.

Can any oil seal with similar dimensions replace CORTECO 01031966?

Automatic interchangeability should not be assumed. Verify the exact 28.56x41.23x6.35 mm dimensions, NBR material, B1SLX2 profile, sealing construction and OE reference.

CORTECO 01031966 NBR B1SLX2 28.56x41.23x6.35 mm - key information

CORTECO 01031966 is an NBR Simmerring radial shaft oil seal with B1SLX2 profile and precise dimensions of 28.56x41.23x6.35 mm. It incorporates an additional dust lip and is also referenced as CORTECO 01031966B and 82031966. A confirmed JOHN DEERE reference is AT21780. Use the precise, non-rounded dimensions when selecting a replacement.

Availability from simmering.pl

CORTECO 01031966 NBR B1SLX2 28.56x41.23x6.35 mm is available from simmering.pl for agricultural machinery service, industrial maintenance, repair workshops, technical procurement, distributors and B2B customers.

Products are supplied from stock in Poland, with worldwide shipping available. simmering.pl specialises in CORTECO Simmerring radial shaft seals, technical sealing solutions and bearings, with support for identification by CORTECO reference, OE number, material, profile and precise dimensions.