SHAFT MEMBER FOR SLIDING BEARING UNIT, AND SLIDING BEARING UNIT INCLUDING THE SHAFT MEMBER

摘要

PROBLEM TO BE SOLVED: To suppress occurrence of abnormal noise such as a squeak while prohibiting high sliding characteristic, in a sintered metal sliding bearing.SOLUTION: The shaft member 3 used for a sliding bearing unit is used to be incorporated in the sintered metal sliding bearing (sintered metal bearing 2) mainly composed of a copper structure 9 or having the copper structure 9 and an iron structure 10 and has a sliding surface 4 between the bearing member and the sintered metal bearing 2. The shaft member 3 includes a metal shaft body 7, and a resin coating 8 formed on the predetermined surface of the shaft body 7 and composing the sliding surface 4. The resin coating 8 is formed of resin having excellent adhesiveness to the shaft body 7 in comparison with the copper structure 9, and only a part of the resin coating is separated from the shaft body 7 with relative sliding with the sintered metal bearing 2.