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FLENDER Couplings

As the worldwide largest manufacturer of mechanical couplings, with more than 80 years of experience, Siemens ensures that machine shafts are safely connected in almost all industrial sectors – worldwide – Available with CURRAX.

The high-quality industrial couplings are very well suitable for the use in many fields of application, many of them even in potentially explosive atmospheres. The product range covers couplings of a torque range from 10 up to 10,000,000 Nm.

Your benefits

FLENDER couplings stand for highest reliability, low maintenance, and low investment and lifecycle costs. Even as individually adapted solutions they are convincing owing to highest product quality and long service life.

FLENDER Torsionally rigid couplings

ZAPEX gear couplings are particularly suitable for rough operating conditions as occur, for example, in metallurgical engineering or in the cement industry. In addition, ZAPEX couplings stand out due to their power capacity combined with compact design.

ARPEX all-steel couplings are without circumferential backlash, suitable for high ambient temperatures, and especially for machines which must be operated with high precision. Examples are papermaking and printing machines.

Your benefits

  • Because of a multitude of series and sizes, drives with low, average, and high powers are covered and special customer requirements can be met
  • ARPEX all-steel couplings are independent of direction of rotation (suitable for reversing operation)
  • Available also for use in potentially explosive atmospheres (in conformity with directive 94/9/EC

FLENDER Gear coupling ZAPEX ZW

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FLENDER Gear coupling ZAPEX ZN

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FLENDER All-steel coupling ARPEX

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FLENDER Flexible couplings

Flexible FLENDER couplings are suitable for plug-in assembly and are easy to mount. The flexible elements compensate shaft misalignments and absorb moderate shock loads of motor or driven machine.
Standard couplings of a wide modular design range and application-related couplings in special design cover a multitude of applications.

Your benefits

  • Reliable transmission of torque in case of shaft misalignment with low restoring forces
  • Suitable for vertical mounting position
  • Electrically insulating series are also available
  • Low degree of maintenance
  • Many series and sizes available ex stock at short term
  • Also available for use in potentially explosive atmospheres (acc. to 94/9/EC)

FLENDER Pin coupling N-EUPEX

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FLENDER Pin coupling N-EUPEX DS

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FLENDER Claw coupling N-BIPEX

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FLENDER Highly flexible couplings

Due to their low torsional rigidity and good damping properties, highly flexible FLENDER couplings are excellently suitable for connecting non-uniformly working machines. They are preferably used in periodically exciting systems, such as drives with internal combustion engines or piston compressors. Because of the large elastomer volume, comparably large shaft misalignments can be compensated.

Your benefits

  • Transmission of torque possible with nearly no circumferential backlash
  • Compensates very large axial, radial and angular misalignment (e.g. on flexibly installed machines)
  • Easy removal and fitting of flexible elements
  • Series available for use in potentially explosive atmospheres in conformity with directive 94/9/EC

FLENDER Hydrodynamic couplings

FLUDEX couplings are hydrodynamic fluid couplings operating according to the Föttinger principle. The coupling parts on the input and output side are not mechanically connected and thus not subject to wear. Torque is transmitted by the fluid movement in the coupling accelerated by the radial blades.

Your benefits

  • Soft and shock less starting of machines and conveyors
  • Acceleration of very large masses without the necessity to use over dimensioned motors
  • Protection of drive against peak loads in case of frequent starting and reversing operations
  • Excellent vibration separation and shock damping; greatest possible extent of torsional vibration uncoupling in drives subject to vibration

FLUDEX Fluid coupling

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