Patent ID: 7175531

Claim:
A constant velocity fixed joint, comprising: an outer part having an axis and being formed with spherical inner surfaces and tracks; an inner part formed with spherical outer surfaces and tracks; a cage having an axis and being disposed between said inner part and said outer part, said cage having windows formed therein for holding balls in said tracks on said outer part and said inner part; said cage being formed with spherical inner surfaces and spherical outer surfaces having a common center of curvature; said cage being guided by way of said spherical outer surfaces thereof on said spherical inner surfaces of said outer part and by way of said spherical inner surfaces thereof on said spherical outer surfaces of said inner part; and said outer part and said cage being configured to be coaxially slidable one inside the other, during assembly, along a direction of the respective component axes thereof in a first rotational position with respect to each other and to be self-holding in a twisted second rotational position by an undercut formed by the spherical inner surfaces of said outer part.