The ball cage universal joint is a kind of universal joint that was quickly developed in the XNUMXs and XNUMXs. It is characterized by good sealing, good synchronization, compactness, simple structure, long life, and load-bearing Good effect, high efficiency, and large angular displacement.It is mainly used in cranes, tractors, automobiles, textiles, medical and other fields.This design is based on the design of the layout structure of the automobile transmission system to determine the structural characteristics and other parameters of the ball and cage universal joint.There is an in-depth analysis of the constant velocity motion, force, efficiency and life of the ball-and-cage universal joint.