CORTECO 20034106 T/A RWDR-CALZATO 35x47x7 mm - PTFE/ACM Rotary Shaft Oil Seal

Characteristics of CORTECO 20034106

CORTECO 20034106 is a specialised rotary shaft seal designed for automotive applications where sealing material, lip geometry and compatibility with the installation position are particularly important.

Unlike conventional rotary shaft seals manufactured entirely from NBR, this product is specified with a combination of PTFE and ACM materials.

PTFE is a fluoropolymer known for its low friction coefficient and chemical resistance. ACM is a synthetic polyacrylate elastomer used in sealing applications involving lubricating oils and elevated operating temperatures.

Key product characteristics:

• Manufacturer: CORTECO.

• Manufacturer part number: 20034106.

• Full designation: T/A RWDR-CALZATO.

• Nominal dimensions: 35x47x7 mm.

• Materials: PTFE and ACM.

• Product type: Radial shaft oil seal.

• Catalogue applications: Crankshaft and camshaft sealing.

• Installation position: Front side, depending on the specific engine.

• Sealing thread characteristic: Variable direction.

• Special sealing construction requiring correct application identification.

• Designed for dynamic sealing of rotating shafts.

The combination of PTFE and ACM distinguishes this product from conventional NBR shaft seals. However, the exact operating capabilities depend on the specific construction and the manufacturer's technical requirements.

Technical Specifications

Manufacturer-specific operating limits, including maximum shaft surface speed, permissible pressure, temperature range, seal mass and detailed lip geometry, are not provided because they have not been independently verified for this exact part number.

The presence of a garter spring, exact PTFE lip arrangement and installation procedure must be confirmed using the technical instructions applicable to CORTECO 20034106.

What Does CORTECO 20034106 T/A RWDR-CALZATO Mean?

CORTECO - Manufacturer

CORTECO is a brand of the Freudenberg Group, supplying replacement parts and sealing solutions for automotive and technical applications.

Its product range includes rotary shaft seals and other components used in engine, transmission and mechanical sealing systems.

20034106 - Manufacturer Part Number

20034106 identifies the specific product in the CORTECO catalogue.

When ordering a replacement seal, the complete manufacturer part number should be checked against the original equipment reference and the vehicle application.

T/A - Construction Designation

T/A is part of the product's construction designation.

It should not automatically be interpreted as equivalent to conventional A, BA, BASL, SC or TC oil seal profiles.

Without the manufacturer's detailed construction documentation, assigning a separate geometric meaning to each character would be unreliable.

RWDR-CALZATO - Special Seal Designation

RWDR is an abbreviation of the German term Radialwellendichtring, meaning radial shaft seal.

CALZATO is part of the special product designation.

The complete designation identifies a particular seal execution and should not be treated as interchangeable with a conventional spring-loaded NBR oil seal solely because the nominal dimensions are identical.

PTFE - Polytetrafluoroethylene

PTFE is a fluoropolymer used in specialised dynamic sealing components.

Its relevant material properties include:

• Low friction coefficient.

• Resistance to many chemicals.

• Suitability for selected high-performance sealing designs.

• Stable material properties under appropriately specified operating conditions.

The actual performance of a PTFE sealing lip depends on its geometry, material formulation, shaft surface and operating conditions.

The presence of PTFE alone does not establish the maximum temperature, speed or pressure rating of this specific seal.

ACM - Polyacrylate Rubber

ACM is a synthetic elastomer used in technical sealing applications, particularly where compatibility with lubricating oils and elevated temperatures is required.

It is commonly associated with automotive oil sealing systems.

Its suitability depends on the specific oil formulation, operating temperature and exposure conditions.

ACM should not be considered universally resistant to all fluids or chemicals.

35x47x7 mm - Nominal Dimensions

The dimensional designation identifies:

• 35 mm - nominal shaft diameter.

• 47 mm - nominal housing bore diameter.

• 7 mm - axial seal width.

These dimensions are essential for identification but do not guarantee interchangeability with other seals of the same size.

Construction and Operating Principle

CORTECO 20034106 is designed to limit lubricant leakage where a rotating shaft passes through a stationary housing.

The specified PTFE and ACM materials, together with the special sealing design, distinguish it from a conventional NBR radial shaft seal.

PTFE Sealing Interface

PTFE is used in sealing designs where controlled friction and suitable material compatibility are important.

During operation, the sealing surface interacts with the rotating shaft.

Correct performance depends on:

• Sealing lip geometry.

• Shaft surface condition and roughness.

• Correct installation.

• Shaft rotation characteristics.

• Lubrication conditions specified for the seal.

• Compatibility with the original equipment design.

The exact PTFE lip arrangement of CORTECO 20034106 should be identified from the relevant manufacturer documentation rather than assumed from the material designation alone.

ACM Components

ACM provides elastomeric properties within the specified seal construction.

The precise location and function of the ACM components cannot be established solely from the material listing.

The combination of PTFE and ACM should therefore be treated as a product-specific construction requirement.

Variable-Direction Sealing Thread

The product information includes the characteristic variable-direction thread.

In rotary shaft sealing terminology, a sealing thread may refer to a specially formed surface structure or hydrodynamic groove arrangement on the sealing interface.

It does not necessarily mean that the seal is mechanically screwed into the housing.

Such structures can be designed to influence lubricant movement at the sealing contact during shaft rotation.

The exact operation of the variable-direction feature and its compatibility with the shaft's rotation must be confirmed for CORTECO 20034106.

CORTECO 20034106 vs Conventional 35x47x7 NBR Oil Seals

Two rotary shaft seals with identical dimensions may have significantly different constructions.

CORTECO 20034106 should not be replaced with a standard 35x47x7 mm NBR oil seal based only on matching dimensions.

For crankshaft and camshaft applications, differences in sealing material, lip construction, surface geometry and installation procedure may directly affect sealing performance.

OEM Reference Numbers and Cross-References

The following OEM reference numbers have been supplied as references associated with CORTECO 20034106.

These numbers are useful for identifying possible replacement applications.

However, an OEM reference does not automatically confirm compatibility with every vehicle manufactured by the listed brand.

The exact fitment must be verified using the original equipment part number, engine code, production year and installation position.

Applications of CORTECO 20034106

Camshaft Oil Seal

According to the supplied application information, CORTECO 20034106 is associated with front-side camshaft sealing.

The camshaft rotates within the engine assembly, and the seal helps limit oil leakage where the shaft passes through the housing.

Correct fitment depends on the specific engine configuration.

Crankshaft Oil Seal

The product is also associated with front-side crankshaft sealing applications.

A crankshaft oil seal helps retain engine oil where the crankshaft passes through the engine housing.

The correct sealing design is determined by the original equipment specification.

Engine-Specific Selection

The same seal reference may appear in different catalogue application categories.

This does not mean that CORTECO 20034106 is suitable for both crankshaft and camshaft positions in every listed engine.

The actual installation position must be confirmed using the vehicle manufacturer's parts catalogue or reliable application data.

Selection and Interchangeability

Before purchasing CORTECO 20034106, verify:

1. CORTECO manufacturer part number 20034106.

2. Complete designation T/A RWDR-CALZATO.

3. Nominal dimensions of 35x47x7 mm.

4. PTFE and ACM material specification.

5. Original equipment reference number.

6. Vehicle manufacturer, model and production year.

7. Engine code.

8. Installation position - crankshaft or camshaft.

9. Front-side installation requirement.

10. Sealing thread geometry and rotation compatibility.

11. Shaft surface condition.

12. Manufacturer-specific installation procedure.

A replacement seal must match the required material, construction and application, not only the nominal dimensions.

Installation of the PTFE/ACM Oil Seal

Rotary shaft seals incorporating PTFE may require installation procedures different from those used for conventional NBR seals.

Before installation:

• Clean the shaft and housing bore.

• Inspect the shaft for scratches, corrosion and wear grooves.

• Protect the sealing interface from sharp edges.

• Use the correct installation tool.

• Maintain the specified installation direction and depth.

• Check whether the seal must be installed dry or lubricated.

• Follow any manufacturer requirements concerning the time before initial shaft rotation.

Important: Some PTFE rotary shaft seals require dry installation and a specified waiting period before the engine is started.

These requirements must not be assumed to apply identically to every PTFE seal.

For CORTECO 20034106, follow the applicable CORTECO installation instructions or the vehicle manufacturer's repair procedure.

Incorrect installation may damage the sealing interface or cause premature leakage.

Alternative Designations and Search References

The product may be identified using the following formats:

• CORTECO 20034106

• 20034106 CORTECO

• CORTECO 20034106 T/A

• CORTECO 20034106 RWDR-CALZATO

• CORTECO 20034106 35x47x7

• CORTECO 20034106 PTFE ACM

• CORTECO crankshaft oil seal 35x47x7

• CORTECO camshaft oil seal 35x47x7

• CORTECO 20034106 radial shaft seal

• CORTECO 20034106 Simmerring

The OEM references are listed separately above. These alternative formats are descriptive identification references, not additional manufacturer part numbers.

FAQ - CORTECO 20034106

1. What are the dimensions of CORTECO 20034106?

The seal has a nominal shaft diameter of 35 mm, housing bore diameter of 47 mm and axial width of 7 mm.

2. What materials are used in CORTECO 20034106?

The product is specified with PTFE (polytetrafluoroethylene) and ACM (polyacrylate rubber).

3. What does RWDR-CALZATO mean?

RWDR is the German abbreviation for radial shaft seal. CALZATO is part of the product's special construction designation. The exact geometry must be identified using CORTECO technical information.

4. Is CORTECO 20034106 a crankshaft oil seal?

The product is associated with front-side crankshaft sealing applications. Compatibility with a particular engine must be confirmed using the relevant OEM reference.

5. Can CORTECO 20034106 be used as a camshaft oil seal?

The supplied catalogue information also associates this part with camshaft sealing. Exact fitment depends on the engine design and installation position.

6. Can a conventional 35x47x7 mm NBR oil seal replace CORTECO 20034106?

Not without technical verification. CORTECO 20034106 uses a special PTFE/ACM construction that may have different sealing and installation requirements.

7. Should CORTECO 20034106 be lubricated before installation?

This cannot be determined from the material designation alone. Some PTFE seals require dry installation. The procedure must be confirmed for this specific part.

8. Is OEM reference 7701475009 associated with CORTECO 20034106?

Yes, 7701475009 appears in the supplied reference list. Compatibility with the specific vehicle, engine and installation position should be verified before ordering.

CORTECO 20034106 - Key Technical Information

CORTECO 20034106 T/A RWDR-CALZATO is a radial shaft oil seal with dimensions of 35x47x7 mm, specified with PTFE and ACM materials. It is associated with front-side crankshaft and camshaft sealing applications. Its special construction and variable-direction sealing thread require compatibility with the original equipment specification and the correct installation procedure.

CORTECO 20034106 is available from simmering.pl, a specialist supplier of rotary shaft seals, industrial oil seals and rolling bearings.

With warehouse operations in Lublin, Poland, simmering.pl supplies industrial maintenance departments, automotive parts customers and international B2B buyers, with worldwide shipping options.