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US 4,050,130 AGranted
Method for mounting a bearing in a universal joint
AssigneeNadella
InventorAlfred Pitner
Life of this patent
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AssigneeNadella
InventorAlfred Pitner
Estimating the term…
Method for mounting a cylindrical bearing having a closed end wall around a trunnion of a cross member of a universal joint by fitting the bearing in a bore of the corresponding yoke under such conditions that the end wall of the bearing affords an elastically yieldable support, optionally through intermediate means, for the end face of the trunnion. The method comprises giving to the end face of the trunnion and to the parts conjugate therewith, namely the end wall of the bearing and/or the intermediate means, such an arrangement that, in a first stage of said fitting, when the parts conjugate with the end face merely come in contact with the latter and possibly in mutual contact, a first axial distance between the open end of the bearing and the end face is distinctly less than a second axial distance which must be finally obtained between the open end of the bearing and the end face. Thereafter, the end wall of the bearing and/or the intermediate means are plastically deformed, in a final stage of said fitting, so as to eliminate the differencebetween said two axial distances and thereby achieve said elastically yieldable support by elastic return consecutive to the plastic deformation.
In a method for mounting a cylindrical bearing around a trunnion having an end face of a cross member of a universal joint, the cylindrical bearing being open at one end and closed by an end wall at the other end of the bearing, by fitting the bearing in a bore of a corresponding yoke of the joint so that, in a final position of the bearing in said bore, the end wall of the bearing affords an elastic support for said end face of the trunnion, the end wall having a center portion which initially forms a depression having a convex side facing said end face and which, by the effect of plastic deformation, has its profile inverted resulting in a dome which has a concave side facing said end face and is connected to an outer peripheral portion of the end wall by a convex annular portion facing said end face, comprising bringing said center portion of said end wall intially merely in contact with said end face in a first stage of said fitting so that a first axial distance between the open end of the bearing and said end face is distinctly less than a second axial distance which must be finally obtained in said final postion of the bearing in said bore;
In a method for mounting a cylindrical bearing around a trunnion having an end face, of a cross member of a universal joint by fitting the bearing in a bore of a corresponding yoke of the joint, the cylindrical bearing being open at one end and closed by an end wall at the other end of the bearing so that, in a final position of the bearing in said bore, said end wall, in combination with a disc coaxial with the bearing and interposed between said end wall and said end face, affords an elastic support for said end face, said disc having a wall comprising an outer peripheral annular portion bearing against said end wall and a center portion which initially forms a depression having a convex side facing said end face and which, by the effect of plastic deformation, has its profile inverted resulting in a dome which has a concave side facing said end face and is connected to said peripheral portion of said disc by a convex annular portion facing said end face, comprising bringing said end wall and said disc in mutual contact and said center portion of said disc merely in contact with said end face in a first stage of said fitting so that a first axial distance between the open end of the bearing and said end face is distinctly less than a second axial distance which must be finally obtained in said final position of the bearing in said bore;
Dependencies are inferred from the claim text.