CORTECO® 01027811B BASFX2 Oil Seal | Simmerring 23x32.6x5.5 mm | HNBR | TRW USA 0230080018009

What is the CORTECO 01027811B Oil Seal?

The CORTECO 01027811B BASFX2 is a high-quality radial shaft oil seal, also known as a Simmerring, manufactured from HNBR hydrogenated nitrile rubber. It is designed for demanding operating conditions requiring reliable resistance to temperature, oils, mechanical stress and material ageing.

This seal is used primarily in TRW steering gears and power steering systems, as well as in other automotive and industrial applications requiring a compact, durable HNBR shaft seal.

Technical Specifications

HNBR Material Advantages

HNBR, or hydrogenated nitrile butadiene rubber, provides improved thermal, mechanical and ageing resistance compared with standard NBR compounds.

Key advantages include:

• Very good resistance to mineral oils and lubricating greases
• Improved resistance to elevated temperatures
• High resistance to oxidation and ageing
• Good resistance to ozone and environmental exposure
• Increased mechanical strength
• Good abrasion and wear resistance
• Reliable performance in demanding sealing applications
• Long service life under suitable operating conditions

The compatibility of the material should always be verified against the operating fluid, temperature, pressure, shaft speed and installation conditions.

BASFX2 Seal Design

The BASFX2 profile is designed to provide effective radial shaft sealing in compact assemblies operating under demanding conditions.

Its construction supports:

• Reliable retention of lubricants and hydraulic fluids
• Protection against external contamination
• Stable sealing performance during long-term operation
• Reduced leakage risk
• Effective operation in compact steering components
• Consistent contact between the sealing lip and shaft surface

Correct installation, shaft condition and lubrication are essential for obtaining the expected sealing performance.

Typical Applications

The CORTECO 01027811B 23x32.6x5.5 mm HNBR oil seal is commonly used in:

• TRW steering gears
• Power steering systems
• Steering racks
• Hydraulic steering components
• Automotive repair applications
• OEM steering assemblies
• Hydraulic equipment
• Industrial machinery
• Compact rotary shaft sealing systems
• Maintenance and replacement operations

Application in TRW Steering Systems

The TRW USA reference 0230080018009 identifies the seal for use in compatible TRW steering components. Matching the CORTECO and TRW reference numbers helps workshops, steering gear rebuilders and technical distributors identify the correct replacement sealing component.

Before installation, the following parameters should be confirmed:

• CORTECO reference number
• TRW reference number
• Seal dimensions
• BASFX2 profile
• HNBR material
• Shaft diameter
• Housing bore
• Installation direction
• Condition of the shaft sealing surface

The reference number and dimensions should always be checked against the original removed seal or technical documentation of the steering gear.

Why Choose CORTECO?

CORTECO specializes in sealing solutions for automotive and industrial applications. Its product range includes radial shaft seals, valve stem seals, transmission seals, steering system seals and other technical sealing components.

The CORTECO 01027811B offers:

• Precise dimensions
• Durable HNBR sealing material
• Application-specific BASFX2 design
• Compatibility with the listed TRW reference
• Reliable performance in steering gear applications
• Suitability for professional repair and maintenance work

FAQ

What are the dimensions of the CORTECO 01027811B seal?

The seal has an inside diameter of 23 mm, an outside diameter of 32.6 mm and a width of 5.5 mm.

What material is used?

The seal is manufactured from HNBR hydrogenated nitrile rubber.

What does BASFX2 mean?

BASFX2 is the CORTECO designation for the specific construction and sealing profile of this radial shaft seal.

What is the corresponding TRW reference number?

The listed TRW USA reference number is 0230080018009.

Is this a steering gear oil seal?

Yes. The product is intended primarily for compatible TRW steering gear and power steering applications.

Can the seal be selected only by its dimensions?

Dimensions are important, but the profile, material, manufacturer reference and application must also be checked. Two seals with identical dimensions may have different lip designs or operating properties.

Is HNBR more resistant than standard NBR?

HNBR generally offers improved resistance to heat, oxidation, ageing and mechanical stress compared with standard NBR.

What should be checked before installation?

Check the shaft surface, housing bore, seal orientation, lubrication, dimensions and compatibility with the operating fluid.

Frequently Asked Questions from Mechanics and Engineers

Is the CORTECO 01027811B suitable for steering rack rebuilding?

It may be used in compatible TRW steering assemblies when the dimensions, seal design and reference number match the original component.

Can an NBR seal replace this HNBR version?

A standard NBR seal should not be treated as an automatic replacement. HNBR may be specified due to higher temperature, ageing or mechanical resistance requirements.

Why is the outside diameter 32.6 mm instead of a nominal 32 mm?

Non-standard outside diameters are often used in application-specific automotive sealing systems. The exact 32.6 mm dimension must be maintained when selecting a replacement.

Can the sealing lip be installed dry?

Unless the application instructions state otherwise, the sealing lip should normally receive suitable initial lubrication to reduce friction and prevent damage during the first movement of the shaft.

What can cause premature oil seal failure?

Common causes include:

• Incorrect installation direction
• Damaged shaft surface
• Contamination
• Insufficient lubrication
• Excessive pressure
• Shaft misalignment
• Incorrect material selection
• Damaged sealing lip during assembly
• Selection based only on approximate dimensions