Rigid couplings - DIN 115 split

Rigid coupling DIN 115 made of cast iron

G&G rigid couplings according to DIN 115 are mainly used in mechanical and plant engineering. They are considered to be torsionally rigid connections and are therefore absolutely backlash-free. Rigid couplings according to DIN 115 from the G&G Antriebstechnik GmbH product range are recommended as a robust and reliable shaft connection for the transmission of speed and torque in a wide power spectrum. The specific application, the parameters of the installation situation and the associated individual technical requirements are decisive for product selection and dimensioning.

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Rigid coupling DIN 115 split - technical drawing
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Rigid couplings according to DIN 115

G&G rigid couplings according to DIN 115 consist of two half-shells that enclose and fix shaft ends that are exactly in front of each other and clamp them together in a friction-locked manner with the help of bolted connections. They can be used in a temperature range from −30°C to +220°C. The use of rigid couplings ideally requires the additional installation of support bearings in the area of the respective shaft ends, especially when long shafts are operated at high speeds. This significantly reduces the bending stress on the couplings. It is generally unnecessary to dismantle the shafts when installing G&G rigid couplings.

The torque is defined by the maximum permissible surface pressure, the friction pairings and the bolt clamping force. The permissible surface pressure of the shaft must be at least equal to that of the coupling. The drive power values (speed and torque) specified in the following tables are maximum values that can generally only be achieved under the following conditions:

  • Exactly aligned shaft ends
  • Max. dimensional accuracy of the shafts
  • Identical shaft diameters
  • Proper assembly

Safety factors are not taken into account here. They must be calculated according to the accepted rules of engineering and taken into consideration when designing the drive train.