| 摘要 |
A longitudinal plunging unit for the transmission of torque in a drive assembly. It comprises a profiled sleeve ( 21 ) with circumferentially distributed, longitudinally extending first ball grooves ( 22 ); a profiled journal ( 11 ) with circumferentially distributed, longitudinally extending second ball grooves ( 12 ); balls ( 31 ) which are arranged in groups of pairs of first and second ball grooves ( 12, 22 ); a ball cage ( 41 ) which is arranged between the profiled sleeve ( 21 ) and the profiled journal ( 11 ) and fixes the balls ( 31 ) in their positions relative to one another; and a spring mechanism ( 51 ) which is supported on at least one axial stop ( 42, 43 ) and designed in such a way that, in an unloaded condition, the ball cage ( 42 ) is held at a distance from the at least one axial stop ( 42, 43 ).
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