BEARING METAL, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To solve the problem that a tin alloy is easily oxidized when depositing a spray coating of the tin alloy of high seizure resistance through the blow-in thermal spraying on an inner circumferential surface of a bearing metal, the thermal spraying angle becomes too small and the condition of the thermal spraying is degraded when the blow-in thermal spraying is implemented into a portion inward of both ends of the bearing metal in the longitudinal direction, the quality is degraded by dust contained in the alloy during the blow-in thermal spraying, and the spray coating has low adhesion strength and is easily peeled together with the bad condition of the thermal spraying. SOLUTION: In the bearing metal for rotatably supporting a shaft, the spray coating formed of the tin alloy is thermally sprayed on the inner circumferential surface of a bearing metal base body from the inner surface by an inner surface thermal spraying gun.