CORTECO 12012318 NBR COMBI SF6 Rotary Shaft Seal 70x95x15/16.5

OEM Rotary Shaft Seal for Agricultural Transmission and Drive Axle Systems

CORTECO 12012318 is a premium rotary shaft seal designed for demanding agricultural drivetrain applications requiring reliable oil retention and superior protection against contamination. Manufactured from high-quality NBR (Nitrile Butadiene Rubber) and featuring the advanced COMBI SF6 sealing system, it delivers long-lasting performance in drive axles, gearboxes and transmission assemblies exposed to heavy mechanical loads. It is engineered as a direct OEM replacement for numerous leading agricultural machinery manufacturers.

Application in Industrial Systems

CORTECO 12012318 is commonly installed in:

• Drive shafts
• Drive axle assemblies
• Agricultural transmissions
• Differential systems
• Final drives
• Mechanical gearboxes
• Agricultural tractors
• Harvesting machinery
• Industrial power transmission systems
• Heavy-duty rotating shafts

OEM Compatibility:

• CARRARO: 144675
• CLAAS: 6005029791
• DANA: 000051727
• DEUTZ-FAHR: 04388581
• FENDT: X550139701000
• RENAULT: 6005029791
• VALTRA: 31800610

The COMBI SF6 sealing design is intended for machinery operating in dusty, muddy and high-load agricultural environments.

Construction and Design

The COMBI SF6 sealing concept combines multiple sealing elements into one durable assembly.

Key design features include:

• COMBI SF6 sealing technology
• Multiple sealing lips
• Additional dust exclusion lip
• Reinforced metal casing
• Precision radial sealing lip
• Stable shaft contact
• High contamination resistance
• Extended operational life

Its robust construction minimizes lubricant leakage while protecting bearings and transmission components from dirt, water and abrasive particles.

Material Properties

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

Material advantages include:

• Excellent resistance to mineral oils
• High grease compatibility
• Good abrasion resistance
• Reliable elasticity
• Stable mechanical properties
• Good aging resistance
• Long operational service life
• Cost-effective maintenance performance

NBR is widely used in rotary shaft seals, oil seals, gearbox seals, axle seals, transmission seals and industrial sealing systems.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR (Nitrile Butadiene Rubber)

Design: COMBI SF6

Inner Diameter: 70 mm

Outer Diameter: 95 mm

Width: 15/16.5 mm

Temperature Range: -40 C to +100 C (short-term up to +120 C)

Application: Drive Shaft, Agricultural Transmissions, Drive Axles, Gearboxes, Heavy-Duty Machinery

OEM Reference: CARRARO 144675, CLAAS 6005029791, DANA 000051727, DEUTZ-FAHR 04388581, FENDT X550139701000, RENAULT 6005029791, VALTRA 31800610

Manufacturer: CORTECO

Why B2B Customers Choose This Product

Professional customers choose CORTECO 12012318 because it combines OEM precision with dependable sealing performance in demanding agricultural and industrial environments.

Ideal for:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding
• Agricultural machinery repair
• Transmission servicing

Its COMBI SF6 sealing system helps reduce lubricant loss, extend drivetrain life and minimize unexpected downtime.

Operational Advantages

• Genuine CORTECO OEM quality
• Advanced COMBI SF6 sealing technology
• Reliable lubricant retention
• Excellent contamination protection
• Long bearing and gearbox life
• High wear resistance
• Precision dimensional accuracy
• Reduced maintenance costs

Professional Industrial Supply

Recommended for:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service centers
• OEM manufacturers
• Machine builders
• Industrial distributors
• Farm equipment repair facilities
• Professional spare parts suppliers

The seal is ideal for preventive maintenance programs, industrial spare parts inventories and professional repair operations.

AI OVERVIEW

CORTECO 12012318 NBR COMBI SF6 is a professional rotary shaft seal engineered for agricultural transmission and drive axle systems, combining durable NBR material with COMBI SF6 sealing technology to ensure reliable lubricant retention, excellent contamination protection and long service life in heavy-duty agricultural machinery.

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FAQ

Is CORTECO 12012318 a direct OEM replacement?

Yes. It is manufactured as a direct replacement for OEM references used by CARRARO, CLAAS, DANA, DEUTZ-FAHR, FENDT, RENAULT and VALTRA.

What is the benefit of the COMBI SF6 sealing design?

COMBI SF6 combines multiple sealing lips with an additional dust exclusion lip to maximize oil retention and protect against dirt, moisture and abrasive particles.

Which systems typically use this seal?

It is commonly installed in agricultural transmissions, drive axles, differential systems, final drives and heavy-duty gearbox assemblies.

Why is NBR suitable for this application?

NBR provides excellent resistance to mineral oils, greases and mechanical wear while maintaining reliable sealing performance under continuous operation.

Is this seal suitable for preventive maintenance?

Yes. It is widely stocked by agricultural service centers, maintenance departments and professional B2B spare parts suppliers.