A star coupling is a flexible mechanical coupling used to connect two shafts, ensuring efficient torque transmission while accommodating misalignment. It consists of two hubs and a star-shaped elastic element that absorbs shocks and vibrations, protecting connected equipment. Star couplings are durable, easy to install, and require minimal maintenance. Commonly used in industrial machinery, pumps, and compressors, they provide smooth operation, reduce noise, and improve the lifespan of the system.