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. 

lHigh torque transmitting capacity.

lEasy to assemble and dismantle.

lSimple in construction.

lEasy to design and manufacture.

lIt can't tolerate misalignment between the axes of two shafts.

lIt is used only where the motion is free from shock and vibrations.

lIt requires more radial space.

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