FLENDER ZAPEX ZW® Torsionally Rigid Gear Coupling

FLENDER ZAPEX ZW® Torsionally Rigid Gear Coupling

 Torsionally rigid couplings 

 Gear couplings
 All-steel couplings 

Technical assistance

FLENDER ZAPEX ZW® Torsionally Rigid Gear Coupling

 Coupling type   Gear coupling, torsionally rigid  


 fail-safe, torsionally rigid, double-jointed
 Nominal torque   1,300 Nm to 7,200,000 Nm

 Perm. peripheral speed

 60 m/s 

 Temperature range   –20°C to +80°C 
  Perm. angular misalignment   1°
  Designs    Available from the standard range: with spacer, with brake disk/drum, for vertical mounting position, as disengaging coupling, as shear pin coupling, acc. to directive 94/9/EC

 Optionally available: with sliding hub, with axial play limiting device, with creeping current insulation

 Examples of application   Presses, crushers, pumps, mixers


ZAPEX gear couplings link machine shafts and compensate for shaft misalignment with weak restorative forces. High transmissible torque combined with compactness and light weight are characteristic of ZAPEX couplings.

ZAPEX coupling types are constructed on a modular principle. This means that application-specific solutions can be delivered quickly. ZAPEX couplings require very little maintenance. Regular grease or oil changes at the prescribed intervals prolongs the service life of the coupling.


ZAPEX couplings are especially suited for operation in harsh operating conditions, such as drives in the iron smelting or cement industry.

ZAPEX couplings are suitable for reverse operation and horizontal mounting positions and, in the case of type ZWNV, for vertical mounting positions.

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