11 March 2017

Advantage and disadvantage of rigid flange coupling

Rigid flange couplings are commonly used in large, straight shafts where tight alignment tolerances must be maintained. In the power transmission industry, these couplings are very common and consist of two separate flanged halves that are bolted together. To ensure proper alignment and tight fit, the halves are keyed to the shaft with tapered keys. In situations where a strong coupling is required, a rigid flange coupling is often used, but there is little axial distance available. Let us have a deep insight into the pros and cons provided by this type of coupling. 

Advantages of rigid flange coupling :

  • High torque transmitting capacity.
  • Easy to assemble and dismantle.
  • Simple in construction.
  • Easy to design and manufacture.

Disadvantages of rigid flange coupling :

  • It can't tolerate misalignment between the axes of two shafts.
  • It is used only where the motion is free from shock and vibrations.
  • It requires more radial space.