Rotary shaft seals, also known as oil seals or simmerings, are designed to seal rotating elements such as shafts or spindles in mechanical systems. Their primary role is to retain lubricants within the housing while preventing external contaminants—such as dust, water, and other fluids—from entering the system.
These seals are critical in protecting bearings and ensuring the proper function and longevity of components operating under rotational motion.
Applications:
Rotary shaft seals are widely used in:
Gearboxes
Electric motors
Pumps
Hydraulic and pneumatic actuators
Automotive steering systems
Industrial machinery
Available Types:
We offer a broad selection of rotary seals tailored to various technical requirements, including:
Corteco® Simmerings – Premium radial shaft seals with high-performance elastomers
Pressure-resistant seals (BABSL, BAHD, BAHDSN) – Designed for applications with internal pressures up to several bar
ASL-type seals – Developed specifically for steering gears and other high-speed applications
DIN-standard seals (DIN 3760 / DIN 3761) – Universally compatible industrial shaft seals
Material Options:
Rotary shaft seals are made from high-performance materials depending on the application:
NBR (Nitrile Rubber): Excellent resistance to oil, fuel, and wear; ideal for general-purpose sealing
FPM/FKM (Viton®): Superior resistance to heat, chemicals, and aging
ACM, HNBR, and PTFE options – Available for demanding applications with high temperatures or aggressive media
The seal body may incorporate a metal insert for structural rigidity, and the sealing lip may include a spring for improved contact pressure against the shaft (e.g., with or without a garter spring).
Design Variants:
Single or double lip configurations
With or without dust lip
Outer rubber-coated or metal-cased bodies
Seals with additional labyrinth features for dust exclusion
Standards & Quality:
All industrial shaft seals comply with international standards such as DIN 3760 / DIN 3761, ensuring dimensional consistency and high performance in demanding conditions.
Use the filtering options on the left to select the right sealing profile, size, and material for your rotary application.
