Rigid non-sliding homokinetic universal joint

Rigid (non-sliding) homokinetic universal joint comprising an outer hollow joint member having an axes of rotation and having a spherical inner surface defining the hollow interior, said outer joint member having a plurality of grooves formed into said inner surface, an inner joint member having an axis of rotation angularly displaceable relative to the axis of rotation of said outer joint member and positioned within said outer hollow joint member and having a spherical outer surface, said inner joint member having a plurality of grooves formed into said outer surface and the number of said grooves corresponds to the number of said grooves formed into said outer joint member, said grooves in said outer joint member and said inner joint member are arranged in opposed pairs one in each of the joint members, a ball is seated in each opposed pairs of said grooves for transmitting torque therebetween, each of said grooves having a center line and the center lines of each opposed pair of grooves cross one another and form an angle therebetween, the centers of said balls guided in said opposed pairs of grooves being guided in a plane bisecting the angle between the axis of rotation of said inner and outer joint members, the spherical outer surface of said inner joint member is guided in the spherical inner surface of said outer joint member, the axis of rotation of said inner joint member and outer joint member intersecting at the center of the joint, wherein the improvement comprises that the center line of each of said grooves in said inner and outer joint members extends along a circular arc and a plane containing the circular arc intersects the axes of rotation of the joint member containing the groove at a location spaced from the center of the joint.