Patent ID: 7946769
Filing Date: 2011-05-24
Classification: F16C

Abstract:
1. A bearing mechanism comprising: a shaft; a bearing portion retaining a lubricant in a space between the shaft and the bearing portion, the bearing portion rotatably supporting the shaft concentrically about a central axis of the shaft; and a cover arranged to cover an end portion of a lower portion of the bearing portion in an axial direction; wherein the bearing portion includes a lower inner circumferential surface arranged opposite from an outer circumferential surface of the cover, and a bottom end surface extending continuously from the lower inner circumferential surface and in a radially outward direction; a fitted portion is arranged between the bottom end surface of the bearing portion and the cover and includes a welded portion defined by a plurality of beads; an inclined surface is provided at a surface of the welded portion such that the further from the central axis a portion of the inclined surface is, the axially higher the portion of the inclined surface is; and the bearing portion includes a notched portion extending from a radially outward location to a radially inward location at a same axial height as the cover.