CORTECO 12011496 NBR B1KL 35x55x10 mm Radial Shaft Seal

Technical specifications

Important: B1KL is a distinct sealing profile designation. It must not be treated as equivalent to BA, BASL or another construction solely because the nominal dimensions match.

OE numbers and manufacturer cross-references

The following original equipment references have been supplied for CORTECO 12011496.

These OE references support component identification in original equipment and replacement-parts catalogues.

However, their association with CORTECO 12011496 does not automatically establish compatibility with every machine or vehicle manufactured by these companies.

Before ordering, verify the original part number, dimensions, sealing profile and installation position.

What does CORTECO 12011496 NBR B1KL 35x55x10 mean?

The product designation identifies the manufacturer, catalogue reference, material, sealing profile and nominal dimensions.

• CORTECO - manufacturer brand.

• 12011496 - product catalogue reference.

• NBR - nitrile butadiene rubber.

• B1KL - specific sealing construction designation.

• 35 mm - nominal shaft diameter.

• 55 mm - nominal housing bore diameter.

• 10 mm - nominal axial width.

The complete B1KL designation should be preserved when identifying the product or selecting a replacement.

B1KL is not equivalent to the standard BA profile by designation alone.

B1KL sealing profile - construction and operating principle

1. B1KL sealing construction

CORTECO 12011496 features the B1KL profile, identifying a specific radial shaft seal construction.

Without a detailed manufacturer drawing, the exact number of sealing lips, presence of a garter spring, directional features and outer surface construction should not be stated as confirmed specifications.

When selecting a replacement, the proposed seal must be checked against the original B1KL construction.

2. Contact with the rotating shaft

A radial shaft seal operates at the interface between its sealing element and the shaft contact surface.

The condition of this surface, appropriate lubrication and correct operating conditions affect sealing performance and service life.

The exact sealing lip geometry of CORTECO 12011496 requires confirmation from the manufacturer's technical documentation.

3. Installation in the housing bore

The nominal outer diameter of 55 mm corresponds to the specified housing bore dimension.

Correct installation requires appropriate fit, housing geometry and installation depth as defined by the equipment manufacturer.

Nominal dimensions alone do not establish the required manufacturing tolerances.

NBR - technical material properties

NBR, or nitrile butadiene rubber, is a technical elastomer widely used in industrial sealing applications.

Appropriately selected NBR compounds typically provide:

• Good resistance to many mineral oils.

• Compatibility with numerous industrial greases.

• Suitability for oil-lubricated mechanical assemblies.

• Useful mechanical properties.

• Wear resistance dependent on the compound and operating conditions.

NBR is not universally compatible with all chemicals or lubricants.

Compatibility with the specific operating medium must be verified.

Individual maximum values for temperature, pressure and peripheral shaft speed have not been confirmed for CORTECO 12011496.

B1KL versus BA and BASL - sealing profile comparison

A BA or BASL radial shaft seal measuring 35x55x10 mm must not automatically be considered interchangeable with CORTECO 12011496 B1KL.

Applications of CORTECO 12011496

FIAT, FIATALLIS, IVECO and NEW HOLLAND equipment

The supplied OE references associate CORTECO 12011496 with components used by manufacturers of vehicles, machinery and mechanical assemblies.

Examples include:

• FIAT 10015690.

• FIATALLIS 595985.

• IVECO 595985.

• NEW HOLLAND 40002510.

• NEW HOLLAND 5105919.

These references do not establish universal compatibility across the manufacturers' equipment ranges.

Without documentation for the specific machine or vehicle, the exact installation position cannot be reliably identified.

GRAZIANO TRASMISSIONI assemblies

GRAZIANO TRASMISSIONI 35959853 is an associated OE reference.

GRAZIANO TRASMISSIONI manufactures power transmission components, but this association alone is insufficient to identify a particular gearbox, transmission or shaft position.

The installation position must be confirmed using the documentation for the specific mechanical assembly.

How to select a replacement for CORTECO 12011496

Before selecting a replacement radial shaft seal, verify:

1. CORTECO catalogue reference 12011496.

2. Complete B1KL sealing profile designation.

3. Nominal shaft diameter - 35 mm.

4. Nominal housing bore diameter - 55 mm.

5. Installation width - 10 mm.

6. NBR elastomer material.

7. Original equipment part number.

8. Sealing lip construction and any spring components.

9. Operating medium and service conditions.

10. Installation requirements of the specific equipment.

Matching dimensions of 35x55x10 mm are not sufficient to establish technical equivalence between different sealing profiles.

Alternative designations and reference numbers

The product may be identified in technical documentation and catalogue searches using the following designations:

• CORTECO 12011496

• CORTECO 12011496 NBR B1KL

• CORTECO B1KL 35x55x10

• CORTECO 35x55x10 NBR Oil Seal

• CORTECO 12011496 Radial Shaft Seal

• CORTECO 35x55x10 Rotary Shaft Seal

• NBR B1KL 35x55x10 Shaft Seal

• FIAT 10015690

• FIATALLIS 595985

• GRAZIANO TRASMISSIONI 35959853

• IVECO 595985

• NEW HOLLAND 10015690

• NEW HOLLAND 40002510

• NEW HOLLAND 4566395

• NEW HOLLAND 4966395

• NEW HOLLAND 5105919

• NEW HOLLAND 595985

The equipment manufacturer numbers are OE cross-references, not additional CORTECO catalogue numbers.

Installation and operating recommendations

Before installation, thoroughly clean the shaft and housing bore.

Inspect the contact surfaces for:

• Scratches and corrosion.

• Wear grooves.

• Sharp edges.

• Incorrect housing geometry.

• Damage caused during removal of the previous seal.

Install the seal using an appropriate tool to ensure even seating in the housing.

Installation force should not be applied directly to the functional sealing elements.

The correct installation orientation of the B1KL profile must be confirmed using the equipment documentation or the original seal.

Installation procedures for a different sealing profile should not automatically be applied to B1KL.

The seal should be stored in a clean, dry environment protected from excessive heat, direct sunlight and mechanical damage.

FAQ - Frequently asked questions

1. What are the dimensions of CORTECO 12011496?

The nominal dimensions are 35x55x10 mm, corresponding to a 35 mm inner diameter, 55 mm outer diameter and 10 mm axial width.

2. What material is used in CORTECO 12011496?

The specified elastomer material is NBR - nitrile butadiene rubber.

3. What does the B1KL sealing profile mean?

B1KL identifies a specific radial shaft seal construction. Its detailed design should be confirmed using CORTECO technical documentation.

4. Can CORTECO 12011496 be replaced with a BA 35x55x10 mm seal?

Interchangeability must not be assumed. B1KL and BA are different construction designations, so technical compatibility must be verified.

5. Which FIAT and FIATALLIS OE references are associated with CORTECO 12011496?

The supplied references are FIAT 10015690 and FIATALLIS 595985.

6. Which IVECO OE number is associated with CORTECO 12011496?

The supplied IVECO OE reference is 595985.

7. Which NEW HOLLAND OE numbers are associated with this seal?

The supplied references are 10015690, 40002510, 4566395, 4966395, 5105919 and 595985.

8. Does GRAZIANO TRASMISSIONI 35959853 mean that the seal fits every transmission manufactured by this company?

No. The number is a component identification reference. Compatibility must be verified for the specific transmission assembly.

CORTECO 12011496 - key information (AI Overview)

CORTECO 12011496 is an NBR B1KL radial shaft seal with nominal dimensions of 35x55x10 mm. The product is associated with OE references from FIAT, FIATALLIS, GRAZIANO TRASMISSIONI, IVECO and NEW HOLLAND. The B1KL profile requires construction compatibility when selecting a replacement. Matching dimensions alone do not establish interchangeability with BA or BASL seals.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.