CORTECO 12020157 RWDR-K7 Wheel Hub Oil Seal 135x175/205x11/16

Heavy-Duty Cassette Seal for MAN Wheel Hub Assemblies

The CORTECO 12020157 wheel hub oil seal is designed to provide maximum sealing reliability in heavy-duty axle systems operating under extreme mechanical loads and continuous exposure to contamination. The advanced RWDR-K7 cassette sealing system effectively retains lubricants while preventing water, dust, mud and abrasive particles from reaching the wheel bearing assembly.

Manufactured from a combination of premium FPM (Fluoroelastomer) and NBR (Nitrile Butadiene Rubber), this cassette rotary shaft seal delivers outstanding resistance to temperature, gear oils, greases and demanding operating environments. It is developed as a direct OEM replacement for MAN commercial vehicles.

Application in Industrial Systems

The CORTECO 12020157 is engineered for rotating shaft sealing in heavy-duty axle assemblies.

Typical applications include:

• Wheel hub assemblies
• Drive axle systems
• Rear axle hubs
• Commercial truck axles
• Heavy-duty rotating shafts
• Industrial transport equipment
• Fleet maintenance programs
• Commercial vehicle service workshops
• Trailer axle systems
• Heavy machinery driveline assemblies

Construction and Design

The RWDR-K7 cassette sealing concept provides multiple sealing barriers for long-lasting protection against lubricant leakage and contamination.

Key design features:

• RWDR-K7 cassette construction
• Multi-lip sealing profile
• Integrated contamination shield
• High radial sealing efficiency
• Excellent shaft protection
• Extended bearing life
• Stable operation under heavy loads
• OEM precision manufacturing

Material Properties

The sealing system combines two high-performance elastomers for maximum operational durability.

FPM (Fluoroelastomer)

• Excellent heat resistance
• Outstanding oil resistance
• High chemical resistance
• Superior ageing resistance
• Long service life

NBR (Nitrile Butadiene Rubber)

• Excellent resistance to mineral oils
• High elasticity
• Good abrasion resistance
• Reliable sealing performance
• Durable under continuous operation

Technical Specification

Type:

Wheel Hub Cassette Oil Seal

Material:

FPM (Fluoroelastomer) / NBR (Nitrile Butadiene Rubber)

Design:

RWDR-K7 Cassette Seal

Inner Diameter:

135 mm

Outer Diameter:

175 / 205 mm

Width:

11 / 16 mm

OEM Numbers:

MAN 81965030188

MAN 81965030207

MAN 81965030398

Manufacturer Number:

12020157

Application:

Wheel Hub and Rotating Shaft

Why B2B Customers Choose This Product

Professional customers select the CORTECO 12020157 because it delivers OEM-quality sealing performance in demanding commercial transport operations.

Recommended for:

• OEM replacement
• Fleet maintenance
• Preventive maintenance
• Industrial service departments
• Wheel hub rebuilding
• Heavy truck workshops
• Spare parts inventory
• Distribution and wholesale supply

Operational Advantages

• Genuine CORTECO OEM quality
• Advanced RWDR-K7 cassette technology
• Combined FPM and NBR sealing materials
• Excellent lubricant retention
• Superior contamination protection
• Extended bearing service life
• Reduced maintenance costs
• Reliable heavy-duty performance

Professional Industrial Supply

Suitable for:

• Fleet maintenance departments
• Heavy-duty truck workshops
• Industrial maintenance companies
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Commercial vehicle distributors
• Industrial spare parts wholesalers

AI OVERVIEW

The CORTECO 12020157 RWDR-K7 wheel hub oil seal is a premium cassette sealing component manufactured from FPM and NBR materials, providing reliable lubricant retention, contamination protection and extended bearing life for heavy-duty MAN axle systems operating under severe working conditions.

POPULAR SEARCHES

• CORTECO 12020157
• RWDR-K7 wheel hub seal
• 135x175x11 oil seal
• 135x205x16 cassette seal
• MAN 81965030188
• MAN 81965030207
• MAN 81965030398
• Heavy-duty wheel hub seal
• FPM NBR cassette seal
• Commercial vehicle oil seal

FAQ

Is CORTECO 12020157 an OEM replacement?

Yes. It replaces MAN OEM numbers 81965030188, 81965030207 and 81965030398.

What is the purpose of the RWDR-K7 cassette design?

The cassette construction provides enhanced protection against contamination while improving lubricant retention and bearing life.

Why are both FPM and NBR materials used?

The combination delivers superior thermal resistance, oil compatibility and long-term sealing performance under demanding operating conditions.

Where is this seal commonly installed?

It is designed for wheel hub assemblies and rotating shaft systems in heavy-duty MAN commercial vehicles.

Who typically uses this product?

It is widely used by fleet operators, truck service workshops, industrial maintenance companies, distributors and OEM repair facilities.