CLASSIFICATION AND APPLICATION OF COUPLINGS

WHAT  IS  RIGID AND FLEXIBLE OF COUPLINGS?

 

1. Rigid couplings :

• A rigid coupling is used to connect two shafts that are perfectly aligned.
• These couplings are neither capable of tolerating any misalignment between two shafts capable of absorbing shocks. However, these are simple and inexpensive.
• The different types of rigid couplings are:

           (i)      Muff or sleeve coupling

           (ii)    Split muff or clamp or compression coupling

           (iii)   Flange coupling 

2. Flexible couplings :

• Flexible couplings are used to connect two shafts having a small amount of lateral or/and angular misalignment.
• These couplings are capable of absorbing shocks and vibrations.
• The different types of flexible couplings are  :

          (i)      Bushed-pin type flexible coupling

          (ii)     Oldham coupling

          (iii)    Universal coupling