Constant velocity joint and driveshaft including same

Abstract

A constant velocity joint configured to be coupled to an interconnecting shaft of a driveshaft includes: an outer race forming a plurality of outer ball tracks; an inner race forming a plurality of inner ball tracks corresponding to the plurality of the outer ball tracks; a ball cage interposed between the outer race and the inner race and forming a plurality of windows; and a plurality of torque transmitting balls respectively disposed in spaces formed by the pairs of the outer and inner ball tracks in a state of being respectively housed in the windows. The inner race is coupled to the interconnecting shaft via a ball spline coupling structure to implement a length displacement function through relative axial displacement along an axial direction of the interconnecting shaft. The outer race comprises an inner circumferential surface having a shape of a spherical surface with a first diameter, and a diagonal length of the inner race is smaller than the first diameter.

Dependencies are inferred from the claim text.