Patent ID: 7070508

Claim:
A constant velocity fixed ball joint ( 11 ) having a longitudinal axis (A) and comprising: an outer joint part ( 12 ) with an annular member ( 13 ) and a joint base ( 14 ) which is produced separately from, and is connected to, the annular member ( 13 ); an inner joint part ( 23 ) which is axially supported directly or by way of a cap ( 42 ) or disc ( 40 ) on the joint base ( 14 ) of the outer joint part ( 12 ); first ball tracks ( 22 ) in the outer joint part ( 12 ) and second ball tracks ( 25 ) in the inner joint part ( 23 ) which first ball tracks and second ball tracks ( 22 , 25 ) are positioned in planes extending through the longitudinal axis (A) and which comprise curved center lines; balls ( 16 ) which run in pairs of first ball tracks ( 22 ) and second ball tracks ( 25 ) associated with one another said pairs of first ball tracks ( 22 ) and second ball tracks ( 25 ) widening towards a joint aperture ( 26 ) axially opposite the joint base ( 14 ); a cage ( 17 ) which comprises circumferentially distributed cage windows ( 18 ) for receiving balls ( 16 ) and which holds said balls ( 16 ) in a common plane, wherein the cage ( 17 ) is axially form-fittingly held in both directions in an inner face in the outer joint part ( 12 ), and wherein, in a first axial direction towards the joint base ( 14 ), the inner joint part ( 23 ) is unsupported relative to the cage ( 17 ), and in a second axial direction towards the joint aperture ( 26 ), the inner joint part ( 23 ) is indirectly supported via the cage ( 17 ) on the outer joint part ( 12 ), and wherein the cross-section of the inner joint part ( 23 ) is smaller than a base aperture in the annular member ( 13 ) provided for the joint base ( 14 ), and wherein the joint base ( 14 ) is fixed in the base aperture in the annular member ( 13 ).