CORTECO 01026911B 28x40x8 mm NBR BABDUOX7 Rotary Shaft Seal

AI Overview

The CORTECO 01026911B is a premium OEM-quality rotary shaft seal designed for demanding automotive and industrial applications. With dimensions of 28x40x8 mm, it is manufactured from NBR (Nitrile Butadiene Rubber) and features the advanced BABDUOX7 sealing profile. The seal provides reliable oil retention, low-friction operation and long service life while protecting rotating shafts against lubricant leakage and contamination. It is an OEM replacement for Mercedes-Benz A0169979347 / 0169979347.

What Makes This Model Different?

The CORTECO 01026911B is designed to deliver dependable sealing performance under demanding operating conditions.

Key advantages include:

• Genuine CORTECO product
• OEM-quality manufacturing
• BABDUOX7 sealing profile
• Premium NBR elastomer
• Spring-loaded sealing lip
• Excellent resistance to mineral oils and grease
• High abrasion resistance
• Low friction operation
• Precision dimensional accuracy
• Long service life

Construction and Operating Principle

The seal consists of:

• Primary sealing lip
• Garter spring
• Reinforced steel insert
• NBR elastomer body

The spring-loaded sealing lip maintains constant radial pressure on the rotating shaft, effectively preventing lubricant leakage while minimizing friction and wear. The BABDUOX7 design ensures stable sealing performance throughout the service life of the component.

Material Properties

The seal is manufactured from NBR (Nitrile Butadiene Rubber).

Material advantages include:

• Excellent resistance to mineral oils
• Very good grease resistance
• Good resistance to hydraulic fluids
• Good resistance to fuels
• High abrasion resistance
• Excellent elasticity
• Good ageing resistance
• Long operating life

NBR is one of the most widely used sealing materials for automotive and industrial rotary shaft seals.

Typical Applications

Typical applications include:

• Internal combustion engines
• Gearboxes
• Drive systems
• Power transmission assemblies
• Hydraulic pumps
• Industrial machinery
• Agricultural equipment
• Construction machinery
• Rotating shafts
• OEM automotive repairs

Typical Failure Symptoms

Replacement is recommended if any of the following symptoms occur:

• Oil leakage
• Grease leakage
• Hardened sealing lip
• Shaft wear
• Loss of sealing performance
• Visible seal damage
• Lubricant contamination
• Increased mechanical wear

Recommended During Maintenance

During installation it is recommended to inspect:

• Shaft sealing surface
• Housing bore
• Bearing condition
• Shaft alignment
• Lubricant quality
• Ventilation system
• Installation depth
• Adjacent sealing components
• Mating parts
• Proper installation tools

Technical Specification

Manufacturer: CORTECO

Part Number: 01026911B

Type: Rotary Shaft Seal

Design: BABDUOX7

Material: NBR (Nitrile Butadiene Rubber)

Inner Diameter: 28 mm

Outer Diameter: 40 mm

Width: 8 mm

Spring: Yes

Operating Temperature: Suitable for the standard operating temperature range of NBR rotary shaft seals.

Application: Sealing rotating shafts in engines, transmissions and industrial equipment requiring a 28x40x8 mm rotary shaft seal.

OEM Cross References

Mercedes-Benz

• A0169979347
• 0169979347

Manufacturer

• CORTECO 01026911B
• CORTECO 01026911

Always verify compatibility using the OEM number or vehicle VIN before installation.

Related Components

Frequently replaced together with:

• Shaft bearings
• Repair sleeves
• O-rings
• Gaskets
• Retaining rings
• Engine oil
• Transmission oil
• Assembly grease
• Fasteners
• Installation tools

Why B2B Customers Choose CORTECO

Professional workshops and industrial maintenance companies choose CORTECO because of:

• OEM-quality production
• Freudenberg sealing technology
• Precision manufacturing
• Long service life
• Reliable sealing performance
• Consistent product quality
• Wide automotive and industrial compatibility
• Trusted global reputation

Professional Industrial Supply

This product is regularly supplied to:

• Automotive workshops
• Engine rebuilding specialists
• Transmission repair companies
• Industrial maintenance departments
• Machinery manufacturers
• Technical distributors
• Fleet maintenance providers
• Agricultural equipment service companies
• Mechanical workshops
• OEM replacement specialists

Popular Searches

• CORTECO 01026911B
• CORTECO 01026911
• 28x40x8 Oil Seal
• 28x40x8 Rotary Shaft Seal
• BABDUOX7 Oil Seal
• NBR Shaft Seal
• Mercedes A0169979347
• Mercedes 0169979347
• Engine Shaft Seal
• CORTECO BABDUOX7

FAQ

What does BABDUOX7 mean?

BABDUOX7 is a specialized CORTECO rotary shaft seal design developed for demanding sealing applications requiring reliable oil retention, low friction and long service life.

Why is NBR used?

NBR offers excellent resistance to mineral oils, greases and fuels while providing high abrasion resistance and long-lasting sealing performance.

Is the seal supplied ready for installation?

Yes. The seal is supplied fully assembled and ready for professional installation.

Which vehicles use this seal?

The CORTECO 01026911B is an OEM replacement for Mercedes-Benz A0169979347 and 0169979347. Compatibility should always be confirmed using the vehicle VIN or OEM number.

Should the shaft be inspected before installation?

Yes. A worn or damaged shaft sealing surface can reduce sealing performance and significantly shorten the service life of the new seal.