COMPOSITE SINTERED BEARING

摘要

PROBLEM TO BE SOLVED: To provide a bearing which is a sliding bearing capable of two-point-supporting a rotary shaft at the two end parts of a bearing and preventing a bearing surface and coaxiality from being out of an order even if it is pressed in the housing of an instrument, long in a life and decreased in a loss of lubrication oil. SOLUTION: Bearing members formed of a sintered alloy for an oil-less metal bearing smaller in a pore diameter than that of a sleeve is pressed in and integrally fixed at the two ends of the sleeve formed of a sintered alloy for a machinery part having high rigidity. Lubricating oil oozing out between bearing members 10 on both sides oozes out to the end face sides of the two bearing members is circulated to the sleeve 20 and lubricating oil shaken off by an oil stop ring 31 of a rotary shaft is absorbed from a tapered surface 21 of the end part of the sleeve and circulated to the bearing member 10. COPYRIGHT: (C)2006,JPO&NCIPI