• The ELPEX-S Rubber Disk Coupling, developed by Flender, is a highly flexible power transmission component engineered to connect machines with highly non-uniform torque characteristics
• Constructed with precision, the coupling consists of rubber disk elements vulcanized to a flange on the inner diameter, with driving teeth on the outer diameter that connect to an outer flange for positive torque transmission[3[8]]
• A core advantage is its linear torsion spring characteristic, which effectively insulates torsional vibrations and ensures stable performance even with fluctuating loads[3
• Certified to comply with the ATEX directive (2014/34/EU), the ELPEX-S is suitable for potentially explosive atmospheres, expanding its application scope to high-risk industries[
• Common applications include drives with internal combustion engines, piston compressors, and cement mills, as well as mining, steel production, and sugar processing—such as tube mills, crushers, rolling mills, and sugar cane mills[2

Flexible and adaptable

Owing to its low torsional rigidity and damping properties the ELPEX-S® coupling is very well suited to connecting machines with considerably non-uniform torque characteristics. The inside diameter of the rubber disk element is vulcanized on a flange. ELPEX-S couplings are designed as a flange/shaft connection or shaft/shaft connection as standard. The hub can take a taper bush.

Your benefits at a glance

• Insulates torsional vibrations with linear torsion spring characteristics
• Many kinds of flange connection are possible (including SAE)
• Easy plug-in assembly even for mounting positions that are difficult to access
• Types are available where the rubber disk element can be replaced without the need to move the coupled machines
• Overload protection for the motor and the driven machine
• Suitable for use in potentially explosive environments; certified according to 2014/34/EU (ATEX)

Made in Germany, worldwide in use

Used in general mechanical engineering; especially suitable for drives

• comprising internal combustion engines
• comprising piston compressors
• for cement mills

Moreover suitable for:

• Mining and Cement: tube mills, vertical mills, crushers
• Steel Production: shears, straightening machines, reversing rolling mills, pilger rolling mills
• Sugar: sugar cane mills

Did you know?

Since the different rubber versions enable the torsional stiffness to be adjusted to meet requirements, the coupling is also suitable for drives which require a specific and preferably precalculated torsional vibration behavior setting.