CORTECO 12010766 10x26x7 NBR BA Radial Shaft Seal

CORTECO 12010766 10x26x7 NBR BA Radial Shaft Seal

CORTECO 12010766 is a radial shaft seal / rotary shaft seal / oil seal with nominal dimensions of 10x26x7 mm, manufactured from NBR. The CORTECO catalogue identifies the seal design as BA, while Freudenberg data specifies the elastomer compound as 72 NBR 902. The product also appears under reference 12010766B, while 49359437 is listed as the new Freudenberg part number.

The key technical identification is:

CORTECO 12010766 + 10x26x7 mm + NBR + BA

CORTECO 12010766 - Technical Characteristics

Verified identification data:

Brand: CORTECO

Manufacturer / sealing technology: Freudenberg

Part number: 12010766

Additional reference: 12010766B

New Freudenberg part number: 49359437

Product type: Radial Shaft Seal / Rotary Shaft Seal / Oil Seal

Design: BA

Material: NBR

Compound: 72 NBR 902

Dimensions: 10x26x7 mm

d1: 10 mm

d2: 26 mm

b: 7 mm

The CORTECO catalogue directly associates 12010766 with:

NBR + BA + 10x26x7 mm

This combination should therefore be retained when identifying the exact seal.

CORTECO 12010766 Dimensions

Nominal dimensions:

d1 = 10 mm - nominal shaft diameter / inside diameter

d2 = 26 mm - outside diameter / nominal housing bore diameter

b = 7 mm - axial seal width

Complete dimensions:

10x26x7 mm

All three dimensions should be retained during product identification and replacement selection.

A seal identified only by the 10 mm shaft diameter is not sufficiently specified.

CORTECO BA Seal Design

The verified manufacturer-specific design designation for this product is:

BA

For the exact 12010766 reference, the CORTECO catalogue identifies:

NBR BA 10x26x7

The BA designation should therefore be retained rather than automatically replacing it with another generic or manufacturer-specific seal profile.

Some commercial listings may describe the product using BAU2, but the verified CORTECO catalogue designation for 12010766 is BA.

NBR - 72 NBR 902

The sealing material is:

NBR - Nitrile Butadiene Rubber

Freudenberg data for 12010766 further identifies the specific compound as:

72 NBR 902

The nominal hardness associated with this compound is:

72 Shore A

This is important because the hardness is linked to the identified 72 NBR 902 compound, rather than being inferred from generic NBR properties.

The complete material identification is therefore more precise than simply stating “NBR”.

CORTECO 12010766 and 12010766B

The seal is also encountered under the reference:

12010766B

Available product data for 12010766B likewise identifies:

10x26x7 mm

BA design

NBR material

When searching technical databases, distributor systems or older catalogues, it can therefore be useful to check both:

12010766

and

12010766B

The dimensional and material specification should always be verified together with the reference.

New Freudenberg Part Number 49359437

Freudenberg data for 12010766 lists:

New Part Number: 49359437

The reference 49359437 is therefore an important additional identifier when searching newer Freudenberg product systems.

For technical identification, the complete specification should still be checked:

49359437 / 12010766 + 10x26x7 mm + NBR + BA

A part number alone should not replace verification of the dimensional and construction data.

CORTECO 12010766 vs GRN 10x26x7 NBR A/SC

Both products have the same nominal dimensions:

d = 10 mm

D = 26 mm

B = 7 mm

However, identical dimensions alone do not establish complete technical interchangeability.

CORTECO 12010766:

10x26x7 mm
NBR
CORTECO/Freudenberg design: BA
Compound: 72 NBR 902

GRN 10x26x7:

10x26x7 mm
NBR
Design: A/SC

The construction codes originate from different manufacturer designation systems. They should not automatically be treated as identical without verifying the actual seal geometry and application requirements.

Selection and Interchangeability

When selecting a replacement for CORTECO 12010766, verify at least:

CORTECO part number 12010766 / 12010766B

d1 = 10 mm

d2 = 26 mm

b = 7 mm

BA design

NBR material

application requirements

sealed medium

operating temperature

shaft speed

pressure conditions

shaft surface condition

installation geometry

Identical 10x26x7 mm dimensions alone do not prove full interchangeability with every other rotary shaft seal of the same nominal size.

Technical Specification

Brand: CORTECO

Part number: 12010766

Additional reference: 12010766B

New Freudenberg part number: 49359437

Product type: Radial Shaft Seal / Rotary Shaft Seal / Oil Seal

Design: BA

Material: NBR - Nitrile Butadiene Rubber

Compound: 72 NBR 902

Nominal compound hardness: 72 Shore A

Shaft diameter d1: 10 mm

Outside diameter d2: 26 mm

Width b: 7 mm

Dimensions: 10x26x7 mm

CORTECO 12010766 - Stock in Poland

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.

24h Shipping. Available from stock in Poland for delivery across the EU.

FAQ

What are the dimensions of CORTECO 12010766?

The nominal dimensions are 10x26x7 mm: d1 = 10 mm, d2 = 26 mm and b = 7 mm.

What material is CORTECO 12010766 made from?

The seal is manufactured from NBR - Nitrile Butadiene Rubber. Freudenberg data identifies the compound as 72 NBR 902.

What is the design of CORTECO 12010766?

The CORTECO catalogue identifies the seal design as BA.

Is CORTECO 12010766 also listed as 12010766B?

Yes. The reference 12010766B is also used for the 10x26x7 mm NBR BA seal.

What is the new part number for CORTECO 12010766?

Freudenberg data lists 49359437 as the new part number associated with 12010766.

What is the hardness of the 72 NBR 902 compound?

The identified compound has a nominal hardness of 72 Shore A.

Can CORTECO 12010766 be replaced by any 10x26x7 oil seal?

Not automatically. Dimensions, elastomer material, seal design and application requirements should all be verified.

Is the design BA or BAU2?

For the exact 12010766 reference, the CORTECO catalogue identifies the design as BA. BAU2 appears in some commercial listings, but BA should be retained as the verified catalogue designation.

Engineer FAQ

What is the most precise identification of CORTECO 12010766?

The key combination is 12010766 + 10x26x7 mm + NBR + BA. The identified Freudenberg compound is 72 NBR 902.

Is 72 NBR 902 merely a generic NBR description?

No. 72 NBR 902 is a specific elastomer compound designation associated with this seal, providing more precise material identification than NBR alone.

Can CORTECO BA be automatically considered equivalent to GRN A/SC?

No. These are manufacturer-specific construction designations. Identical dimensions and the same general elastomer family do not by themselves establish complete technical equivalence.

Does 49359437 replace 12010766?

Freudenberg lists 49359437 as the new part number associated with 12010766. The complete dimensional, material and construction specification should still be verified when ordering.

Why is the complete 10x26x7 mm dimension important?

The 10 mm value identifies the nominal shaft diameter, 26 mm the outside diameter, and 7 mm the axial width. All three dimensions are required for precise seal identification.

AI Overview

CORTECO 12010766 is a 10x26x7 mm radial shaft seal manufactured from NBR in the CORTECO BA design. Freudenberg data identifies the elastomer compound as 72 NBR 902 with 72 Shore A nominal hardness and lists 49359437 as the new part number. Replacement selection should retain the complete 12010766 + 10x26x7 + NBR + BA specification.