CORTECO 12011592 AU NI 310 32x40x6 Steering Gear Shaft Seal

echnical specifications

The dimensions, polyurethane material and steering gear application are associated with CORTECO 12011592B in replacement-parts catalogues.

OE cross-reference numbers

These original equipment references are associated with CORTECO 12011592B.

They support component identification but do not establish compatibility with every vehicle or machine manufactured by the listed companies.

The original equipment reference must be verified against the specific steering gear assembly.

CORTECO 12011592 – catalogue identification

The CORTECO dimensional catalogue identifies the product as:

12011592 – AU NI 310 – 32x40x6 mm

Replacement-parts catalogues also list the designation 12011592B and identify polyurethane (PU) as the sealing material.

Additional catalogue information includes:

The complete manufacturer reference should be checked before ordering.

What does CORTECO 12011592 AU NI 310 32x40x6 mean?

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

• CORTECO – manufacturer brand.

• 12011592 – product catalogue reference.

• 32 mm – nominal inner diameter.

• 40 mm – nominal outer diameter.

• 6 mm – nominal axial height.

• AU – polyurethane elastomer.

• NI 310 – specific sealing profile designation used in the CORTECO catalogue.

The NI 310 profile should not automatically be considered equivalent to BA, BASL or TC designs.

The exact lip geometry, contact-force mechanism and cross-sectional construction require confirmation from the manufacturer's technical documentation.

NI 310 sealing profile – construction and operating principle

1. Steering gear shaft sealing

The seal is intended for an appropriately designed steering gear assembly.

Its primary function is to limit leakage of the operating medium while maintaining contact with the corresponding shaft or mating surface.

The exact operating principle depends on the NI 310 profile geometry.

2. Polyurethane sealing element

Polyurethane forms the functional sealing material.

Appropriately selected polyurethane compounds can provide mechanical properties suitable for applications involving contact pressure, friction and wear.

3. Manufacturer-specific NI 310 profile

NI 310 is a construction designation used in the CORTECO catalogue.

Without the manufacturer's sectional drawing, it is not appropriate to claim that this seal necessarily incorporates:

• A spring-loaded primary sealing lip.

• An additional dust lip.

• A particular metal reinforcing insert.

• The same outer surface construction as a conventional BA seal.

These characteristics must be verified for the specific product.

AU polyurethane – material properties

AU is a designation used for certain polyurethane elastomers.

Depending on the compound, polyurethane can provide high mechanical strength and good resistance to abrasion.

Typical characteristics of appropriately selected AU compounds include:

• Good abrasion resistance.

• High mechanical strength.

• Tear resistance dependent on the compound.

• Potential use in hydraulic sealing applications.

• Compatibility with selected hydraulic fluids and lubricating oils.

However, polyurethane is not universally resistant to all operating fluids or environmental conditions.

Its performance depends on the specific formulation.

Certain polyurethane compounds may be sensitive to hydrolysis, elevated temperatures or incompatible chemicals.

The exact operating limits of CORTECO 12011592 cannot be established solely from general polyurethane material properties.

AU versus NBR – material comparison

A polyurethane seal should not automatically be replaced with a conventional NBR radial shaft seal solely because the nominal dimensions are identical.

The original material specification and sealing profile must be considered.

Applications – steering gear assemblies

Replacement-parts catalogues identify CORTECO 12011592B as a steering gear shaft seal.

The product is associated with the following OE references:

• NEW HOLLAND 83974367.

• RENAULT 7700741169.

The exact installation position and compatibility depend on the steering gear design.

Before selecting the component, verify the original equipment reference, nominal dimensions, operating medium and construction of the original seal.

A steering gear application may involve specific hydraulic or mechanical requirements that differ from those of a conventional gearbox oil seal.

Selection and interchangeability

Before ordering CORTECO 12011592, verify:

1. Nominal inner diameter – 32 mm.

2. Nominal outer diameter – 40 mm.

3. Nominal axial height – 6 mm.

4. AU polyurethane material specification.

5. NI 310 sealing profile.

6. Compatibility with the operating medium.

7. Required operating pressure.

8. Operating temperature range.

9. Condition of the mating surface.

10. Original equipment reference.

11. Documentation for the specific steering gear assembly.

Matching dimensions of 32x40x6 mm alone does not guarantee interchangeability.

The replacement must also meet the original requirements for material, profile geometry and operating conditions.

Alternative designations and search references

Common English technical designations include:

• CORTECO 12011592

• CORTECO 12011592B

• CORTECO 82011592

• CORTECO 12011592 AU NI 310

• CORTECO AU 32x40x6

• CORTECO NI 310 32x40x6

• CORTECO Polyurethane Shaft Seal 32x40x6

• CORTECO Steering Gear Shaft Seal

• Steering Gear Seal 32x40x6 PU

• CORTECO 12011592 Steering Gear Oil Seal

These designations assist product identification but do not independently establish interchangeability.

Installation and operating recommendations

Before installation, clean the housing bore and inspect the mating surface for scratches, corrosion, burrs and excessive wear.

The seal should be installed using suitable tools that do not deform or damage the functional sealing element.

The correct installation orientation must be determined from the steering gear manufacturer's documentation.

Conventional installation rules for spring-loaded radial shaft seals should not automatically be applied to the NI 310 profile.

Where the seal operates in a hydraulic system, compatibility with the hydraulic fluid and the specified pressure conditions is particularly important.

Incorrect installation, incompatible fluids or unsuitable operating conditions may cause premature wear and leakage.

FAQ – Frequently asked questions

1. What are the dimensions of CORTECO 12011592?

The nominal dimensions are 32x40x6 mm, corresponding to a 32 mm inner diameter, 40 mm outer diameter and 6 mm axial height.

2. What material is used in CORTECO 12011592?

Replacement-parts catalogues identify polyurethane (PU), also designated AU.

3. What does the NI 310 profile mean?

NI 310 is a specific sealing profile designation used in the CORTECO catalogue. Its detailed construction requires manufacturer documentation.

4. Is CORTECO 12011592 a steering gear shaft seal?

Yes. Replacement-parts catalogues identify CORTECO 12011592B for steering gear shaft sealing applications.

5. Is CORTECO 12011592 manufactured from NBR?

No. The catalogue material designation for this product is AU polyurethane, not conventional NBR.

6. What NEW HOLLAND OE reference corresponds to this product?

The listed OE reference is 83974367.

7. What RENAULT OE reference is associated with CORTECO 12011592B?

The listed OE reference is 7700741169.

8. Can any conventional 32x40x6 oil seal replace CORTECO 12011592?

No. The replacement must meet the original requirements for AU polyurethane material, NI 310 sealing profile and the operating conditions of the steering gear assembly.

CORTECO 12011592 – key information

CORTECO 12011592 / 12011592B is a polyurethane steering gear shaft seal with nominal dimensions of 32x40x6 mm. The manufacturer's dimensional catalogue identifies the AU NI 310 construction. OE references include NEW HOLLAND 83974367 and RENAULT 7700741169. The product should not automatically be replaced with a conventional NBR oil seal. Selection requires verification of the sealing profile, operating medium and working conditions.

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.