Patent ID: 9393621
Filing Date: 2016-07-19
CPC Classification: B22F,F04B,F05C,F16C

Claim Text:
1. A halved bearing comprising: a porous layer composed of Cu—Sn series alloy, formed on a surface of a metal substrate; and a sliding layer in which the porous layer is covered with resin material including at least polytetrafluoroethylene and a carbon fiber, wherein an uneven surface which maintains oil to form an oil film and has a shape that prevents the shape from changing against abrasion when a member to be slid is sliding and a height that maintains the oil so that the oil film is formed, is formed on a surface of the sliding layer slidably bearing the member to be slid, and wherein the halved bearing is formed on a circular arc along a direction in which the member to be slid swings, and wherein the uneven surface of the sliding layer has surface roughness of 3.0 through 10.0 μm in arithmetic average roughness (Ra) and has a plurality of reversed-quadrangular-pyramid shaped recess portions defining an oil sump, in which a plurality of linear vertexes that are continuous are arranged in the form of a grid.