Patent ID: 6739758
Filing Date: 2004-05-25
Classification: B23P,B60B,F16C

Abstract:
A bearing device comprising:a shaft having one axial end formed into a cylindrical shape to form a cylindrical portion, a thickness of said cylindrical portion being of uniform thickness along an axial length thereof; and a rolling bearing fitted on said cylindrical portion of said shaft, wherein said rolling bearing is so fixed on said shaft as to be prevented from coming out by rolling-caulking said cylindrical portion of said shaft to bend it radially outward and by pushing the bent caulked portion onto an outer end face of an inner ring of said rolling bearing; and wherein a region at an outer end face of said caulked portion from a bending start point to an outer circumferential edge thereof is formed of a composite curve joining curved surfaces of three different radii of curvature.