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Due to their torsional flexibility, Flender N-EUPEX couplings can move critical torsional vibrations away from the operating area of mechanical equipment in such a way that no negative effects on the drive train are to be expected. Flender flexible couplings N-EUPEX are made of high-quality cast iron. The flexible elements made of synthetic rubber (Buna-N) are available in different degrees of hardness for many applications.
Metal pins and flexible elements are designed so that no wear occurs when they are properly fitted.
Your benefits at a glance
Fail-safe for maximum operational reliability
Three-part type suitable for plug-in assembly and simplified replacement of elements
Choice of elastomer hardness to suit various applications
Suitable for use in potentially explosive environments; certified according to
2014/34/EU (ATEX)
High degree of availability of parts ex stock
Established as an industrial standard, worldwide in use
Mining and Cement: heating technology
Oil and Gas: pumps, fans, compressors, air condensers
Power Generation: pumps, fans, compressors, air condensers, water turbines
Chemicals and Pharmaceuticals: driers, lauter tuns, pumps, fans, compressors, mixers, agitators, reactors
Plastic and Rubber: single- and double-screw extruders
Pulp and Paper: wastewater purification plants
Water and Wastewater: aerators
Food and Beverage: lauter tuns, reactors, agitators, mixers
Flender flexible couplings N-EUPEX DS do not have a fail-safe device, allowing positive disconnection of the input and output side upon failure of the flexible elements due to overload or wear. Then, the metal parts of the DS coupling can rotate freely in opposite directions.
Your benefits at a glance
Can be used universally and combined with many components of the N-EUPEX line
Disconnects driver and driven machine if elastomer fails
No fail-safe principle operation (the load is disconnected)
Suitable for use in potentially explosive environments; certified according to
2014/34/EU (ATEX)
Maintenance-free even if used in explosive atmospheres
Many types are available ex stock
Established as an industrial standard, worldwide in use
Mining and Cement: heating technology
Oil and Gas: pumps, fans, compressors, air condensers
Power Generation: pumps, fans, compressors, air condensers, water turbines
Chemicals and Pharmaceuticals: driers, lauter tuns, pumps, fans, compressors, mixers drives, agitators, reactors
Pulp and Paper: wastewater purification plants
Water and Wastewater: aerators
Food and Beverage: lauter tuns, reactors, agitators, mixers
Flender flexible couplings RUPEX are used as flexible compensating couplings in all applications requiring a reliable transmission of torque under harsh operating conditions. The conical seats of the buffer pins facilitate mounting and guarantee maintenance-free operation.
Robust and proven a million times
The optimized shape of the barreled buffers allows simple plug-in assembly and low circumferential backlash. Many type variants are offered, e.g., with brake disk, axial play limiting device or brake motor couplings.
Your benefits at a glance
Compact design; low weights and mass moments of inertia
Independent of direction of rotation (suitable for reversing operation)
Suitable for plug-in assembly (blind assembly, bell housing installation)
Suitable for use in potentially explosive environments; certified according to 2014/34/EU (ATEX)
Made in Germany, worldwide in use
Mining and Cement: conveyor belts, apron conveyors, bucket elevators, tube mills, rotary kilns, bunker dischargers, vertical mills, bucket excavators, crushers, roller presses, separators, heating technology
Steel Production: shears, straightening machines
Cranes: hoisting and luffing gear systems, slewing gear systems, trolley and travel gear systems
Oil and Gas: pumps, fans, compressors, air condensers
Power Generation: pumps, fans, compressors, air condensers, generators, cooling towers, water turbines
Chemicals and Pharmaceuticals: pumps, fans, compressors, driers, lauter tuns, mixers, cooling towers, agitators, reactors
Plastics and Rubber: single- and double-screw extruders
Pulp and Paper: woodgrinders, waste paper, wet section, dry section, smoothers and cylinders, reel winders, coating machines, calenders, wastewater purification plants
Water and Wastewater: aerators, water screw pumps
Food and Beverage: lauter tuns, reactors, agitators, mixers
Sugar: generators, extraction plants, countercurrent cossette mixers, diffusers, sugar cane mills
Passenger Transport: cable cars
The coupling portfolios normally found on the market consist of comparable couplings with a maximum permissible torque corresponding to twice the coupling’s nominal torque. To be on the safe side – for example during the run-up phase of an asynchronous motor with typical starting torques and tilting moments – it is often necessary to fall back on the next-largest coupling size.
If high rotational speeds or relatively large bores need to be taken into account, the market often offers costly steel solutions. The N-BIPEX copes with just these situations and offers not only higher maximum torques but also an extended range of bores.
With its cast hubs, the Flender N-BIPEX coupling allows greater freedom when designing the cam geometry, thereby laying the foundation for the innovative curved design. Unlike the milled cams typically available on the market, this design results in uniform loading of the elastomer compression bodies under all conditions and, in particular, prevents inward deformation of the cam ring due to load peaks that can cause greater wear.
Hubs made of high-quality nodular cast iron allow the Flender flexible couplings N-BIPEX to cope with high rotational speeds and critical bores. All in all, the N-BIPEX provides reserves that are considerably greater than those normally available on the market, thus achieving a significant reduction in wear.
Your benefits at a glance
High torque reserves (maximum torque = 3 × nominal torque) to effortlessly absorb torque peaks
Reduced complexity and lower storage costs due to the use of a single hub to meet all requirements
High-quality elastomers that ensure uniform load distribution and thus an optimal service life under all conditions
Suitable for use in potentially explosive environments; certified according to 2014/34/EU (ATEX)
Available with taper clamping bush
Made in Germany, worldwide in use
Mining and Cement: separators, heating technology
Steel Production: shears, straightening machines
Oil and gas: pumps, fans, compressors, air condensers
Power Generation: pumps, fans, compressors, air condensers, water turbines
Chemicals and Pharmaceuticals: driers, lauter tuns, pumps, fans, compressors, mixers, agitators, reactors
Pulp and Paper: wastewater purification plants
Water and Wastewater: aerators, water screw pumps
Food and Beverage: lauter tuns, reactors, agitators, mixers
Railway Vehicles: railway couplings
