Bush bearing
AssigneeOiles Corporation
InventorsKohachi Tsuji, Yuzo Makinae, Shigeru Kajiwara
Life of this patent
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Abstract
A bush bearing (1) is a wrapped bush bearing which has a cylindrical inner peripheral surface (2) serving as a sliding surface as well as an outer peripheral surface (3), and whose abutting faces (4) are abutted against each other. The outer peripheral surface (3) includes a cylindrical surface (11); a tapered surface (13) interposed between the cylindrical surface (11) and one annular end face (12) in an axial direction X and formed by roll forming; a smooth circular arc surface (14) interposed between the tapered surface (13) and the cylindrical surface (11); and a smooth circular arc surface (15) interposed between the tapered surface (13) and the end face (12).
Claims20
A bush bearing which is a cylindrical bush bearing whose inner peripheral surface is a sliding surface, wherein an outer peripheral surface of the bush bearing has a cylindrical surface and a tapered surface interposed between the cylindrical surface and at least one annular axial end face of the bush bearing and formed by press forming, and if the wall thickness at the cylindrical surface of the bush bearing is assumed to be t, a difference δ(=r1-r2) between a radius r1 at the cylindrical surface of the bush bearing and a radius r2 at an outer peripheral edge of the one annular end face is in a range of not less than 0.1 t and not more than 0.3 t.
Dependencies are inferred from the claim text.