Method for producing a plain bearing bush
AssigneeMiba Gleitlager Austria GmbH
InventorJohannes Sebastian Hoelzl
Life of this patent
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Abstract
A method for producing a plain bearing bush includes providing a flat supporting metal layer and an anti-friction layer on this supporting metal layer to produce a flat composite material. The flat composite material is then rolled into the shape of the plain bearing bush in such a way that the supporting metal layer in the plain bearing bush is disposed radially underneath the anti-friction layer. The plain bearing bush includes the supporting metal layer disposed underneath the anti-friction layer in the radial direction.
Claims7
A method for producing a plain bearing bush whereby a flat supporting metal layer is provided, an anti-friction layer is provided on this supporting metal layer to produce a flat composite material, and the flat composite material is then rolled into the shape of the plain bearing bush, wherein the flat composite material is rolled in such a way that the supporting metal layer in the plain bearing bush is disposed radially underneath the anti-friction layer, wherein after the rolling the plain bearing bush has open ends running in an axial direction, wherein the open ends are welded to one another such that a weld seam in the axial direction is formed, wherein an oil groove extending in the axial direction is in the plain bearing bush, the oil groove being disposed at a distance from the weld seam, the distance being between 0.5% and 10% of an external circumference of a running surface of the anti-friction layer, and wherein lubricant from a lubricant supply line is fed to the oil groove via a bore running through the supporting metal layer and through the anti-friction layer.
A rolled plain bearing bush made from a composite material comprising a supporting metal layer and an anti-friction layer, wherein the supporting metal layer is disposed underneath the anti-friction layer in the radial direction, wherein the rolled plain bearing bush has a weld seam in an axial direction and an oil groove extending in the axial direction, the oil groove being disposed at a distance from the weld seam, the distance being between 0.5% and 10% of an external circumference of a running surface of the anti-friction layer, and wherein a bore runs through the supporting metal layer and through the anti-friction layer, the bore being configured to supply lubricant from a lubricant supply line to the oil groove.
Dependencies are inferred from the claim text.