CORTECO 12016989 ACM 25x40x8 - Rotary Shaft Oil Seal

Applications of CORTECO 12016989 Shaft Seal

The CORTECO 12016989 ACM 25x40x8 is a precision rotary shaft seal designed for reliable oil sealing in automotive and industrial applications. This shaft sealing ring is used in engines and mechanical assemblies where effective rotary sealing is critical. It is commonly applied in vehicles from Audi, VW, Skoda, Seat, and FAW Audi, fulfilling OEM requirements for sealing rotating shafts exposed to lubricating oils and elevated temperatures. The seal is suitable for use as an engine seal or as part of auxiliary drive and powertrain systems.

Key Advantages and Operating Characteristics

This oil seal is manufactured from ACM elastomer, a material known for its excellent resistance to oils and grease, thermal stability, and long service life. The advanced BASLRDX7 design ensures controlled lip contact, stable sealing pressure, and consistent performance throughout extended operating cycles. As a single lip oil seal, it is optimized for low friction, reduced wear, and high durability, providing reliable sealing both during shaft rotation and at standstill. The seal maintains dimensional stability and sealing efficiency even under demanding automotive conditions.

Technical Data

• Product type: Rotary shaft seal, oil seal
• Manufacturer: CORTECO
• Manufacturer number: 12016989
• Material: ACM elastomer
• Inner diameter: 25 mm
• Outer diameter: 40 mm
• Width: 8 mm
• Design type: BASLRDX7
• OEM reference: 016311113B
• Application: Technical seal, engine and drivetrain sealing

Main Description

The CORTECO 12016989 is a high-performance rotary oil seal engineered for demanding automotive and industrial environments. As a precision shaft seal, it ensures effective separation of lubricating oil from the external environment, protecting mechanical components from leakage and contamination. The use of ACM material provides excellent resistance to mineral oils, greases, and elevated temperatures, making this seal suitable for modern engines and high-load drivetrain applications.

The single lip seal design offers an optimal balance between sealing efficiency and low friction, contributing to extended service life and reduced shaft wear. The reinforced construction and advanced lip geometry ensure stable operation under variable rotational speeds and thermal conditions. This technical seal is widely selected by B2B customers involved in vehicle servicing, industrial maintenance, and OEM-compliant repairs, where reliability, durability, and dimensional accuracy are essential.

FAQ - Frequently Asked Questions

What is CORTECO 12016989 used for?
It is a rotary shaft oil seal used to seal rotating shafts in engines and mechanical assemblies.

Is this a single lip or double lip oil seal?
This is a single lip oil seal designed for efficient oil retention with low friction.

Which material is used in this shaft seal?
The seal is made of ACM elastomer, offering high resistance to oils and elevated temperatures.

How do I select the correct shaft seal size?
The inner diameter must match the shaft diameter, while the outer diameter must match the housing bore.