Patent ID: 6669371
Filing Date: 2003-12-30
Classification: F16C

Abstract:
A cylindrical oil-impregnated sintered bearing having a radial thickness T2 and an inner slide surface, said bearing comprising:a cylindrical porous bearing body made of sintered metal powder, said bearing body having a first portion providing a part of said slide surface and a second portion having an inner periphery, said first portion having the same radial thickness as said bearing; and a non-porous slide member having a thickness T1 disposed at said inner periphery of said second portion for providing the other part of said slide surface, said slide member being made of a resinous material whose clearance changes under a constant temperature change along a non-linear curve having an inflection point that is a function of a ratio T1/T2 of said radial thickness T1 of said slide member to said radial thickness T2 of said bearing changes, wherein said thickness T1 of said slide member is smaller than a thickness that corresponds to a ratio T1/T2 of said inflection point.