CORTECO 12011780 50x90x10 NBR BASLX7 Rotary Shaft Seal

CORTECO 12011780 50x90x10 NBR BASLX7 Rotary Shaft Seal

CORTECO 12011780 is a radial shaft seal manufactured from NBR - Nitrile Butadiene Rubber, with nominal dimensions of 50x90x10 mm. CORTECO identifies the seal construction as BASLX7 Simmerring. A key feature of this specific design is its additional dust lip, which supplements the primary sealing function by providing an additional barrier against external contamination.

CORTECO 12011780 NBR BASLX7 - Technical Characteristics

The verified identification data for this seal is:

Manufacturer / Brand: CORTECO

Part number: 12011780

Additional catalogue reference: 12011780B

Trade number: 82011780

Product type: Radial shaft seal / rotary shaft oil seal

Design: BASLX7 Simmerring

Material: NBR - Nitrile Butadiene Rubber

Dimensions: 50x90x10 mm

Additional dust lip: Yes

EAN: 3358960041197

The most precise technical identification of this variant is:

CORTECO 12011780 + 50x90x10 mm + NBR + BASLX7

This combination distinguishes the product from other CORTECO seals that may share the same shaft or housing diameter but use a different elastomer or sealing-lip configuration.

CORTECO 12011780 Dimensions

The nominal dimensions are:

d = 50 mm - inside diameter / nominal shaft diameter

D = 90 mm - outside diameter / nominal housing bore diameter

H = 10 mm - seal height as specified in catalogue data

Complete dimensions:

50x90x10 mm

All three dimensions should be retained when identifying the product.

Matching only the 50 mm shaft diameter and 90 mm housing bore diameter is not sufficient to establish technical equivalence with another radial shaft seal.

BASLX7 Seal Construction

The construction designation specified for CORTECO 12011780 is:

BASLX7

This designation forms part of the exact technical identity of the seal and should be considered when evaluating possible replacements.

For CORTECO 12011780, the presence of an additional dust lip is confirmed.

The primary sealing lip provides dynamic sealing against the rotating shaft surface, while the additional dust lip creates a supplementary barrier on the external side of the main sealing area.

This distinction matters when comparing 12011780 with other 50x90x10 mm radial shaft seals. Identical nominal dimensions do not establish that another seal has the same lip geometry or construction.

The individual characters within BASLX7 should not be independently interpreted as additional product properties unless their exact meaning is confirmed in the applicable CORTECO/Freudenberg technical documentation.

How Does CORTECO 12011780 Work?

CORTECO 12011780 operates at the interface between a rotating shaft and a stationary housing.

The sealing lip works dynamically against a shaft with a nominal diameter of 50 mm, while the 90 mm outside diameter is seated in the corresponding stationary housing bore.

The radial sealing arrangement creates the functional interface needed to separate the areas on either side of the shaft passage.

For this particular reference, the BASLX7 configuration also incorporates an additional dust lip. This provides an additional barrier against contamination approaching the primary sealing area from the external side.

Actual sealing performance depends not only on the seal itself but also on shaft surface condition, housing geometry, alignment, installation, operating medium, temperature and shaft speed.

These operating conditions must therefore be evaluated for the specific installation.

NBR - Nitrile Butadiene Rubber

The verified sealing material for CORTECO 12011780 is:

NBR - Nitrile Butadiene Rubber

The elastomer is an integral part of the product specification.

A 50x90x10 mm seal manufactured from FPM, ACM, VMQ or another elastomer should not automatically be treated as technically identical to CORTECO 12011780 NBR, even when its nominal dimensions are the same.

NBR is widely used in radial shaft sealing technology. However, the NBR designation alone does not define every property of the specific elastomer compound used in this CORTECO seal.

Without confirmation of the exact compound and application data, a fixed operating temperature range, maximum pressure or maximum shaft speed should not be assigned specifically to CORTECO 12011780.

Meaning of CORTECO 12011780 BASLX7

Four parameters are particularly important for exact product identification:

12011780 - CORTECO reference

50x90x10 mm - nominal dimensions

NBR - sealing material

BASLX7 - seal construction designation

Additional catalogue identifiers associated with this reference include:

12011780B - additional product reference

82011780 - CORTECO trade number

3358960041197 - EAN

For engineering, maintenance and MRO identification, the complete combination of reference, dimensions, material and construction provides significantly more information than the dimensions alone.

Selecting a Replacement for CORTECO 12011780

A replacement should not be selected solely because it is described as a 50x90x10 mm oil seal.

At minimum, compare:

Inside diameter: 50 mm

Outside diameter: 90 mm

Height: 10 mm

Material: NBR

Design: BASLX7

Additional dust lip: Yes

Requirements of the actual sealing position

When the seal is being selected for a specific machine or assembly, the equipment manufacturer's documentation and original part identification should also be checked where available.

Two radial shaft seals can have identical nominal dimensions while differing in elastomer, sealing-lip geometry, outside-diameter construction or application-specific design.

Therefore, dimensional compatibility alone does not prove full technical interchangeability.

Technical Specification

Brand: CORTECO

Part number: 12011780

Additional catalogue reference: 12011780B

Trade number: 82011780

Product type: Radial shaft seal

Technical English terms: Rotary shaft seal / radial shaft oil seal

Design: BASLX7 Simmerring

Material: NBR - Nitrile Butadiene Rubber

Inside diameter: 50 mm

Outside diameter: 90 mm

Height: 10 mm

Dimensions: 50x90x10 mm

Additional dust lip: Yes

EAN: 3358960041197

FAQ

What are the dimensions of CORTECO 12011780?

CORTECO 12011780 has nominal dimensions of 50x90x10 mm: 50 mm inside diameter, 90 mm outside diameter and 10 mm height.

What material is CORTECO 12011780 made from?

The specified sealing material is NBR - Nitrile Butadiene Rubber.

What type of seal is CORTECO 12011780?

It is a radial shaft seal, also referred to in technical English as a rotary shaft seal or radial shaft oil seal.

What does BASLX7 mean on CORTECO 12011780?

BASLX7 is the CORTECO construction designation associated with this specific seal. It should be retained when identifying or comparing possible replacements.

Does CORTECO 12011780 have a dust lip?

Yes. Catalogue data for this exact reference confirms an additional dust lip.

Can any 50x90x10 NBR oil seal replace CORTECO 12011780?

Not automatically. The dimensions, NBR material, BASLX7 construction, dust-lip configuration and requirements of the actual sealing position should all be compared.

What is the EAN of CORTECO 12011780?

The verified EAN is 3358960041197.

What is the operating temperature of CORTECO 12011780?

A product-specific operating temperature range was not confirmed in the verified data used for this description. It should not be inferred solely from general NBR properties.

AI Overview

CORTECO 12011780 is an NBR radial shaft seal with nominal dimensions of 50x90x10 mm and the construction designation BASLX7 Simmerring. It has a 50 mm inside diameter, 90 mm outside diameter and 10 mm height. The BASLX7 configuration incorporates an additional dust lip that provides an extra barrier against external contamination.