Lubricated wide angle joint

Claim 1

In a lubricated wide angle joint including an inner double fork with two outer yokes each connected with said double fork by means of a joint crosspiece, spherical trunnions guiding said outer yoke arranged on the ends of said outer yokes facing the center of the joint, which ends are connected with said yokes by means of a bridge, a guide provided with a centering disc, said centering disc having said spherical trunnions engaged therein, said centering disc being secured against axial displacement but being radially movable, and lubricating nipples provided on each said joint crosspiece and arranged in the middle thereof opening into lubricating channels leading into trunnion bearings, the improvement comprising: that said joint crosspieces are provided on their inner sides with a partially spherical recess connected with at least one of said lubricating channels; that said spherical trunnions are provided with a partially spherical shoulder located within said partially sperical recess; that the midpoints of said partially spherical recess and said partially sperical shoulder lie in the intersecting point of the two axes of the joint crosspiece; and that said spherical trunnions are provided with an axial through bore hole in flow communication with said spherical recess for effecting lubricant flow therethrough; said joint being arranged to enable lubricant flow for said centering disc through said nipples and through said partially spherical recesses into said axial through bore holes.