Rotary constant velocity universal joint

Claim 1

A rotary constant velocity fixed universal joint assembly comprising: an outer joint member defining a spherical hollow space therein; an inner joint member arranged within said hollow space; a drive shaft nonrotatively connected with said inner joint member; torque transmission means operatively interposed between said inner and outer joint members; grooves formed respectively within each of said members having said torque transmission means engaged therein; cage means arranged radially between said inner and said outer joint members, said cage means being arranged to receive in supporting engagement therein said torque transmission means; said cage means including inner wall means defining a hollow space therein within which said inner joint member is received and a spherical outer face held within said spherical hollow space defined within said outer joint member; said inner wall means of said cage means and said inner joint member being arranged in spaced relationship relative to each other; a stop face defined in said spherical hollow space formed within said outer joint member; and a supporting face formed with at least one of said inner joint member and said drive shaft located on the side thereof facing said stop face and arranged for cooperating engagement therewith; said stop face and said supporting face abutting against each other to limit relative movement therebetween in one direction, with said grooves, said torque transmission means, said cage means and said outer joint member being formed to interact with each other so as to limit relative movement between said stop face and said supporting face in the opposite direction thereby to prevent relative axial movement between said inner joint member and said outer joint member.