coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both. Selection, installation and maintenance of couplings can lead to reduced maintenance time and maintenance cost.
Power can be transmitted by using a coupling, even between axes of different diameters as shown in the following figures
The role of a coupling is mainly as follows.
- 1. Power is transmitted from the driving side (turning side) to the driven side (turned side).
- 2. Absorbs mounting errors between the axes of the driving side (turning side) and the driven side (turning side).
- 3. Absorbs vibration from the driving side (turning side) and protects surrounding products.
- 4. Does not transfer heat from the motor on the drive side (turning side), etc. to the driven side (turned side).