Patent ID: 6655845
Filing Date: 2003-12-02
Classification: A61F,A61L,B22F,F16C,G06Q

Abstract:
A rolling bearing component for a bearing unit for use in a machine the bearing component comprising:a substrate that includes a solvent-catalyst metal, a diamond layer sintered to said substrate, a zone between said substrate and said diamond layer that has a composition gradient of decreasing solvent-catalyst metal content across said zone, chemical bonds in said zone, said chemical bonds including diamond-to-diamond bonds in said diamond table, diamond-to-metal bonds in said gradient transition zone, and metal-to-metal bonds in said solvent-catalyst metal, a mechanical grip between said diamond layer and said substrate which tends to secure said diamond layer to said substrate, a residual stress field between said diamond layer and said substrate, interstitial spaces in said diamond layer, solvent-catalyst metal present in said interstitial spaces, a non-planar bearing roller bearing load bearing surface, said non-planar roller bearing load bearing surface being formed by said diamond layer, said non-planar roller bearing load bearing surface providing low friction rolling bearing movement capable of withstanding heat and load.