ABOUT INTRODUCTIONS TO COUPLING EXPAIN ITS PUSPOSE OF USING COUPLING AND REQUIREMENTS

 WHAT IS COUPLING? 

  Coupling is the mechanical element used to connect two shafts of a transmission system. 

• Purposes  of   Using  Coupling :        

         A   coupling serves the following purposes.

1. It provides for the connection of shafts of two different units such as an electric motor and a machine.
2. It makes the provision for disconnection of two units for repairs or alterations. 
3. It introduces mechanical flexibility between two connected units.
4. It reduces the transmission of vibrations and shocks between two connected units.

• Requirements of Good Couplings :

          The important requirements  of  good couplings are :

1. It should transmit the full power from one shaft to another.
2. It should keep the shafts in perfect alignment.
3. It should absorb the slight misalignment that may be present between the driver and driven shaft.
4. It should be easy to connect and disconnect.
5. It should have no projecting parts.