Patent ID: 6921338

Claim:
An axial plunging unit for torque transmission within a driveline comprising: a profiled journal ( 11 ) with first circumferentially distributed, longitudinally extending ball grooves ( 12 ); a profiled sleeve ( 13 ) with second circumferentially distributed, longitudinally extending ball grooves ( 14 ); balls ( 15 ) which are arranged in pairs of the first and second ball grooves ( 12 , 14 ) in groups; and a supporting and attaching sleeve ( 21 ) engaging the profiled sleeve ( 13 ) for torque transmission therebetween, wherein the supporting sleeve ( 21 ), in cross-section, is in abutting contact with the profiled sleeve ( 13 ) in the regions of the second bail grooves ( 14 ) over a range of a supporting angle and the supporting sleeve ( 21 ), in cross-section, extends between regions of the second ball grooves ( 14 ) at a distance from the profiled sleeve ( 13 ).