Patent ID: 9127710
Filing Date: 2015-09-08
Classification: B29C,F16C

Abstract:
1. A sliding bearing, comprising: an inner member having an inner periphery, a mounting surface with respect to a rotary shaft at the inner periphery and a projecting portion projecting outward in a radial direction; an outer member arranged on a radially outer side of the inner member and having a mounting surface with respect to a static-side member at an outer periphery and a pair of flange portions respectively engageable with a pair of axial end surfaces of the projecting portion; a radial bearing gap which is formed between an outer peripheral surface of the projecting portion and an inner peripheral surface of the outer member in accordance with rotation of the rotary shaft, and in which a lubricating oil is interposed, the inner peripheral surface facing the outer peripheral surface; and sealing gaps for sealing both axial sides of the radial bearing gap, the sealing gaps being formed of inner peripheral surfaces of the pair of flange portions, wherein at least a portion of the inner member is formed of a porous body of a sintered metal, and the portion made of the sintered metal being exposed to the mounting surface with respect to the rotary shaft and to a surface to form the radial bearing gap; wherein the portion made of the sintered metal comprises: a first portion having the mounting surface with respect to the rotary shaft; and a second portion having the surface to form the radial bearing gap, the second portion having a higher density than the first portion; and wherein the lubricating oil is flowable between the first and second portions.