Patent ID: 7393283

Claim:
Rzeppa joint that has a drive side end ( 2 ) and a power take-off side end ( 3 ), having an inner hub ( 4 ), which has an inner hub axis ( 9 ) and an outer surface in which first running grooves ( 12 ) and second running grooves ( 13 ) are disposed, distributed alternately about the inner hub axis ( 9 ), whereby the first inner running grooves ( 12 ) run proceeding from the drive side end ( 2 ), in the direction of the power take-off side end ( 3 ), and their track base ( 14 ) approaches the inner hub axis ( 9 ) in doing so, and whereby the second inner running grooves ( 13 ) run from the power takeoff side end ( 3 ), proceeding in the direction of the drive side end ( 2 ), and their track base ( 15 ) approaches the inner hub axis ( 9 ) in doing so, an outer hub ( 7 ), which has an outer hub axis and an inner surface in which first running grooves ( 18 ) and second running grooves ( 19 ) are disposed, distributed alternately about the outer hub axis, whereby the first inner running grooves ( 12 ) lie opposite first outer running grooves ( 18 ), and the second inner running grooves ( 13 ) lie opposite second outer running grooves ( 19 ), forming a pair with these, in each instance, whereby the first outer running grooves ( 18 ) run proceeding from the drive side end ( 2 ), in the direction of the power take-off side end ( 3 ), and their track base ( 20 ) moves away from the outer hub axis in doing so, and whereby the second outer running grooves ( 19 ) run from the power take-off side end ( 3 ), proceeding in the direction of the drive side end ( 2 ), and their track base ( 21 ) moves away from the outer hub axis ( 16 ) in doing so, a ring-shaped cage ( 5 ) that is disposed between the inner hub ( 4 ) and the outer hub ( 7 ) and has radial windows ( 8 ), corresponding to the number of pairs of running grooves ( 12 , 18 ; 13 , 19 ), in which balls ( 6 ) that engage in the running grooves ( 12 , 13 , 18 , 19 ) are guided, wherein the inner hub ( 4 ) comprises at least two elements ( 10 a , 10 b , 11 a , 11 b ) that are connected with one another, which lie essentially one behind the other on the inner hub axis ( 9 ), and of which a first element ( 10 a , 10 b ) has the first inner running grooves ( 12 ) and a second element ( 11 a , 11 b ) has the second inner running grooves ( 13 ).