Rotary Shaft Seal CORTECO 12011205 NBR BASL 80x110x10

Main description

The rotary shaft seal CORTECO 12011205 NBR BASL 80x110x10 is a high-quality oil seal with dust lip, engineered for demanding industrial and automotive applications where reliable rotary sealing and long service life are critical. This model is commonly used as a differential shaft seal, gearbox seal, and rotary oil seal in heavy-duty driveline systems.

The BASL design features a primary sealing lip for oil retention combined with a secondary dust lip, making it a double lip oil seal. This configuration provides effective protection against oil leakage while preventing the ingress of dirt, dust, and moisture from the external environment. As a result, the seal maintains stable performance even in harsh operating conditions.

Manufactured from NBR (nitrile butadiene rubber), the seal offers excellent resistance to oils and grease, good wear resistance, and reliable elasticity across typical operating temperature ranges found in automotive and industrial machinery. NBR is a proven material for rotary seals, ensuring consistent contact pressure on the shaft and reduced friction during continuous operation.

The CORTECO 12011205 rotary shaft seal is designed to meet OEM technical requirements and is widely used as a replacement seal in equipment and vehicles from manufacturers such as CARRARO, CLAAS, IVECO, JOHN DEERE, and VOLVO, according to corresponding OEM references. Its precise dimensions (80 mm shaft diameter, 110 mm housing diameter, 10 mm width) ensure proper fit and dependable sealing in differential housings and transmission assemblies.

This product is well suited for industrial applications, agricultural machinery, commercial vehicles, and powertrain systems where high durability, stable rotary sealing, and protection against contamination are essential.

Applications and advantages

• rotary shaft sealing in differentials and gearboxes

• oil seal for automotive and agricultural drivetrains

• shaft sealing ring for industrial machinery

• double lip oil seal with dust protection

• high durability and long service life

• resistance to oils, grease, and typical operating fluids

Technical data

• Manufacturer: CORTECO

• Part number: 12011205

• Seal type: BASL - double lip oil seal with dust lip

• Material: NBR (nitrile butadiene rubber)

• Inner diameter: 80 mm

• Outer diameter: 110 mm

• Width: 10 mm

• Application type: rotary shaft seal

FAQ - frequently asked questions

What is the difference between a single lip and a double lip oil seal?
A single lip oil seal seals only against oil leakage, while a double lip oil seal includes an additional dust lip to protect against external contamination.

Is NBR suitable for oil and grease applications?
Yes, NBR provides excellent resistance to oils and grease, making it one of the most commonly used materials for rotary shaft seals.

Where is a BASL rotary shaft seal typically used?
BASL seals are commonly used in differentials, gearboxes, and driveline components where both oil retention and dust protection are required.

How do I select the correct shaft seal size?
You must match the shaft diameter, housing diameter, and seal width exactly to the application, while also considering operating conditions and media.