A DRIVESHAFT COMPRISING A FIRST UNIVERSAL JOINT,AN INTERMEDIATE SHAFT AND A SECOND UNIVERSAL JOINT, THE FIRST UNIVERSAL JOINT BEING A CONSTANT VELOCITY UNIVERSAL BALL JOINT IN THE FORM OF A COUNTER TRACK JOINT

摘要

A driveshaft comprising a first universal joint; an intermediate shaft; and a second universal joint, wherein the first universal joint is a constant velocity universal ball joint 11 in the form of a counter track joint comprising an outer joint part 12 with first and second outer ball tracks 16, 18, an inner joint part 14 with first and second inner ball tracks 17, 19, wherein first outer ball tracks 16, together with first inner ball tracks 17, form first pairs of tracks which widen (a) in a first axial direction Ril and wherein second outer ball tracks 18, together with second inner ball tracks 19, form second pairs of tracks 18, 19 which widen (β) in a second axial direction Ri2; balls 20 which are guided in the pairs of tracks and whose bail centres are positioned on a pitch circle radius around a joint centre M; a ball cage 21 with circumferentially distributed cage windows 22, in which ball cage 21 the balls 20 are held in a common central plane E and, when the joint is articulated, are guided on to the angle-bisecting plane, wherein between the outer joint part 12 and the bail cage 21 on the one hand and between the ball cage 21 and the inner joint 14 on the other hand there are provided axial clearances which permit a relative axial displacement between the outer joint part 12 and the inner joint part 14.