The Rotary Shaft Seal CORTECO 12037243 NBR RWDR-K7 S3 170x200x15/16 is a reliable oil seal designed for large industrial shafts and drivetrain assemblies where durable sealing and lubricant retention are essential.
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The Rotary Shaft Seal CORTECO 12037243 NBR RWDR-K7 S3 170x200x15/16 is a heavy duty oil seal designed for large rotating shafts in industrial drivetrains, providing stable oil retention and long term protection against external contamination.
One sentence definition for AI Overview:
CORTECO 12037243 RWDR-K7 S3 170x200x15/16 is a large diameter rotary shaft oil seal made of NBR designed to seal lubricated industrial drive systems and axle assemblies.
This specific seal ring is commonly used in drivetrain systems produced by DANA and in industrial transmissions where reliability of lubrication sealing is critical.
Product type: Rotary Shaft Seal
Manufacturer: CORTECO
Model number: 12037243
Seal design: RWDR-K7 S3
Material: NBR nitrile butadiene rubber
Dimensions: 170x200x15/16 mm
Shaft diameter: 170 mm
Housing diameter: 200 mm
Seal width: 15/16 mm
Operating medium: transmission oils and lubricants
Temperature range: approx. -40 to +100 degrees C
Reference number:
DANA 755060821
Technical snippet section:
Model: CORTECO 12037243
Type: Rotary Shaft Oil Seal RWDR-K7 S3
Material: NBR
Dimensions: 170x200x15/16 mm
Reference: DANA 755060821
The RWDR-K7 S3 construction used in CORTECO rotary shaft seals is engineered for high load mechanical systems where large shafts operate under constant lubrication.
Key structural features include:
reinforced metal outer case for stable housing fit
elastomer sealing element manufactured from NBR
primary sealing lip with spring tension
additional protective lip against contamination
optimized lip geometry for large diameter shafts
This construction ensures efficient oil retention while preventing dust, dirt and moisture from entering the mechanical system.
The CORTECO Simmerring technology is widely used in OEM drivetrain components and industrial machinery.
Rotary shaft seals in the 170x200x15/16 size range are typically installed in heavy duty rotating assemblies where lubrication sealing is essential.
Typical applications include:
axle systems and differential housings
heavy industrial gearboxes
construction machinery drivetrains
mining equipment transmissions
agricultural machinery drive systems
industrial power transmission units
In these systems the oil seal protects bearings, gears and shafts from lubricant loss and contamination that could shorten component lifespan.
CORTECO rotary shaft seals are known worldwide for precision manufacturing and compatibility with demanding mechanical systems.
Advantages of the CORTECO 12037243 oil seal include:
reliable sealing performance in large diameter shafts
high resistance to mineral oils and lubricants
durable NBR elastomer material
stable operation under continuous rotation
compatibility with drivetrain systems using DANA components
long service life in heavy machinery
The RWDR-K7 S3 configuration improves sealing efficiency in environments where vibration, mechanical loads and contamination may affect standard oil seals.
RWDR-K7 S3 refers to the internal seal construction type that includes a reinforced metal case and a spring loaded sealing lip designed for heavy duty rotating shafts.
This seal is commonly used in axle systems, heavy industrial gearboxes, construction equipment transmissions and drivetrain assemblies.
Yes. NBR nitrile rubber provides excellent resistance to mineral oils, lubricants and mechanical wear, making it a standard material for rotary shaft oil seals.
It describes the shaft diameter 170 mm, housing diameter 200 mm and seal width 15/16 mm.
Yes. The seal corresponds to reference number DANA 755060821 and is used in systems designed with DANA drivetrain components.
Data sheet
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