Optibelt Couplings

Gear Couplings

Gear couplings GC are flexible shaft connections suitable for a positive torque transmission. They ensure to compensate radial, axial and angular shaft misalignments. The gear coupling is made of high quality tempered steel with grease lubrication and O-ring seal.

Gear couplings GC are used in all areas of mechanical engineering and offer a long service life with maximum reliability, resulting from the optimal grease lubrication of the crowned spline. The couplings are generally suitable for a horizontal assembly. Special types are suitable for vertical assembly, too.
The range of gear couplings includes sizes from 50 to 1000 with torque transmissions from 1920 Nm to 8,000,000 Nm, diameters from 20 mm to 1000 mm.


Flange Couplings

Flange couplings are torsionally stiff, particularly sturdy and reliable shaft connections which can withstand jolts and radially or axially acting loads.
The connected shafts must be precisely aligned.  

Simple, particularly robust and easy-to-assemble shaft connections with no specific requirements regarding damping capabilities.

Product features:

  • Backlash-free
  • Maintenance-free
  • Cast iron or steel
  • for vertical or horizontal use
  • Bores up to Ø500 mm
  • Torque up to 1,425,000 Nm

PEX® Flexible couplings -Fail-safe plug-in/jaw coupling with flexible elements

The flexible PEX® couplings are claw couplings with flexible elements to provide a torsionally flexible connection of shafts. The flexible elements are extremely wear resistance, age resistance and temperature resistance from –30 °C to +80 °C. Thanks to their flexibility, impacts, rotary vibrations and noises are effectively absorbed. The flexible elements are dimensioned such that radial, axial and angular movements between the two halves of the coupling are cancelled out. The flexible Pex couplings are of the plug-in type for installation and do not involve any particularly rigorous requirements with respect to alignment accuracy. Pex couplings can be used in the whole of machine construction wherever a reliable shaft connection is needed between motor and working machine

Product features:

  • Axial plug-in, easy exchange
  • Fail-safe
  • Reduces vibration
  • Easy switching of the elastomer elements
  • Bores up to Ø100 mm
  • Torque up to 2,800 Nm

ORPEX® Fail-safe pin coupling with flexible elements

Orpex® couplings are used as compensation couplings everywhere where an absolutely reliable torque transfer is required. Orpex® couplings cover with their types a

wide range of uses.

Orpex® couplings are fail-safe up to the fracture moment of the metal parts, which is a multiple of the permissible impact moment, and thus offers the greatest possible operational safety.  Orpex® couplings can be used for both directions of rotation and are also suitable for reversing operation.

With a total of 26 sizes, couplings are available for torques from 200 to 1,300,000 Nm.