A universal coupling is a mechanical device used to connect two shafts together, allowing them to rotate at different angles while maintaining a constant speed. It consists of two half-couplings, each with a set of fork-like arms which fit together to form a flexible joint.
The main application of a universal coupling is in transmitting power from one machine to another. It is commonly used in automotive drivetrains, industrial machinery, marine equipment, and aircraft systems.
In automotive applications, a universal coupling is used to connect the transmission output shaft to the driveshaft and differential. This allows the rear wheels to turn while the engine is running, without putting undue stress on the driveshaft. The flexible joint also helps to absorb shocks and vibrations, improving the overall ride quality.
In industrial machinery, a universal coupling is used to transmit power between two shafts that are not directly aligned. This is particularly useful in machines with rotating parts that move in different directions and speeds.
In marine applications, a universal coupling is used to connect the propeller shaft to the engine. This allows the propeller to turn while the engine remains stationary, allowing the vessel to move forward or backward.
In aircraft systems, a universal coupling is used to connect the engine to the propeller. This allows the propeller to turn at a constant speed, regardless of the angle of the aircraft.
Overall, the universal coupling is a versatile and essential component in many machines and systems, allowing them to function smoothly and efficiently.











