Patent ID: 8277329

Claim:
A homokinetic rotary ball joint in the form of a plunging joint, comprising: a joint outer part with a group of outer first ball tracks and a group of outer second ball tracks, the outer second ball tracks intersecting a joint mid-axis when the joint is aligned; a joint inner part with a group of inner first ball tracks and a group of inner second ball tracks, the inner second ball tracks intersecting the joint mid-axis when the joint is aligned; first balls which are held in first pairs of tracks that include, in each case, an outer first ball track from the group of the outer first ball tracks and an inner first ball track from the group of inner first ball tracks; second balls which are held in second pairs of tracks that include, in each case, an outer second ball track from the group of outer second ball tracks and an inner second ball track from the group of inner second ball tracks, in each case the outer and the inner ball track of the second pairs of tracks intersecting one another; a ball cage which has, distributed circumferentially, cage windows in which the first and the second balls are held in a common plane; wherein a second radial play formed between the second balls and the second ball tracks is greater than a first radial play formed between the first balls and the first ball tracks.