Patent ID: 6299544
Filing Date: 2001-10-09
Classification: F16D,Y10S

Abstract:
A constant velocity ball joint comprising:an outer joint part (11) with an inner cylindrical guiding face (13) provided with first, longitudinally extending ball grooves (12);an inner joint part (14) with a convex guiding face (16) provided with second, longitudinally extending ball grooves (15);torque transmitting balls (32) which run in first and second ball grooves (12, 15) associated with one another;an annular ball cage (21) which holds said balls (32) in a ball center plane (E), the ball cage comprising an outer spherical control face (22) whose greatest diameter is axially removed in a first direction by a distance (x) from the ball center plane (E), and an inner concave control face (25) whose greatest diameter is axially removed in a second direction by a distance (x) from the ball center plane (E), and wherein the inner control face (25) in the ball cage (21) forming end stops for delimiting an axial displacement path of the inner joint part (14) relative to the ball cage (21); anda resilient member (42, 47, 49, 57) which is effective between the ball cage (21) and the inner joint part (14) and which, at least when the ball cage is axially displaced relative to the inner joint part from the center of the axial displacement path in one axial direction, is pre-tensioned,wherein the resilient member comprises two resilient annular elements (42, 47) which are inserted on both sides of the greatest diameter of the control face (25) inside the ball cage (21) and which are in contact with the convex guiding face (16) of the inner joint part (14).