Abstract: A shudderless inboard CV joint having both oil storage chambers formed around each track of an outer race and around a journal of a trunnion and an oil groove formed in an outer ring of each roller assembly. The CV joint includes an outer race connected to a first shaft and having tracks therein; a trunnion connected to a second shaft and having radial journals; and a roller assembly having both an inner ring fitted over each journal and an outer ring engaging with each track so as to be movable in an axial direction of the track, wherein an oil storage chamber is formed around an upper portion of each track and oil is supplied to the oil storage chamber, thus reducing friction formed between the track and the outer ring.