The swivel coupling with bearing is a critical mechanical transmission device used to transfer rotational motion from one shaft to another, while allowing for small displacements, deviations, or misalignments between the shafts. It consists of multiple key components, including coupling housing, bearings, elastic elements, and fixing parts. The bearings are built into the coupling to support and guide rotational motion. Through the use of bearings, the coupling can maintain stable operation under different speeds and load conditions, reducing wear caused by shaft deviation or thermal expansion. Due to the integration of bearings in the coupling, it can effectively absorb and compensate for the impact and vibration caused by shaft misalignment, thereby reducing wear on other components. The low friction characteristics of bearings reduce energy loss in the transmission system, allowing the equipment to output higher power with the same energy consumption.