Patent ID: 8251605

Claim:
A ball and socket joint for a wheel suspension of a motor vehicle, the ball and socket joint comprising: a housing; a ball pivot with a pivot spheroidal bearing surface mounted pivotably and rotatably in said housing; another spheroidal bearing surface mounted in said housing and connected to said ball pivot, said ball pivot comprising a joint ball, said joint ball comprising a first spheroidal part and a second spheroidal part, said first spheroidal part comprising said pivot spheroidal bearing surface and said second spheroidal part comprising said another spheroidal bearing surface, the first spheroidal part and second spheroidal part having axial faces opposing each other, said axial face of the first spheroidal part comprising a first part annular groove formed by a first part flat angular first surface or first part planar angular first surface and a first part flat angular second surface or first part planar angular second surface extending substantially perpendicular to the first part flat angular first surface or first part planar angular first surface, said axial face of the second spheroidal part comprising a second part annular groove formed by a second part flat angular first surface or second part planar angular first surface and a second part flat angular second surface or second part planar angular second surface extending substantially perpendicular to the second part flat angular first surface or second part planar angular first surface, wherein the first part flat angular first surface or first part planar angular first surface is at an angle greater than 0° and less than 90° with respect to a longitudinal axis of the ball pivot and wherein the second part flat angular first surface or second part planar angular first surface is at an angle greater than 0° and less than 90° with respect to the longitudinal axis of the ball pivot; a cylindrical or conical roller bearing between said pivot spheroidal bearing surface and said another spheroidal bearing surface, said cylindrical or conical roller bearing comprising a flat or planar roller bearing surface, an upper roller bearing surface and a lower roller bearing surface, said first part flat angular first surface or first part planar angular first surface and said second part flat angular first surface or second part planar angular first surface engaging at least a portion of said flat or planar roller bearing surface, said first part flat angular second surface or first part planar angular second surface engaging at least a portion of said upper roller bearing surface, said second part planar angular second surface or second part planar angular second surface engaging at least a portion of said lower roller bearing surface, said cylindrical or conical roller bearing transmitting radial and axial forces between said pivot spheroidal bearing surface and said another spheroidal bearing surface.