| 摘要 |
PROBLEM TO BE SOLVED: To improve abrasion resistance and the like against vibration and abrasion resistance at the time of a high temperature or a low temperature, about a bearing for a motor used for an electronically controlled throttle valve and the like of an automobile and the like for rotating the motor at a high speed. SOLUTION: The bearing to be used is made of a material containing copper-coated iron powder that is iron powder with its surface coated by copper as a main material and includes solid lubricant. The copper content in the copper-coated iron powder is 30 to 50 wt.% and the content of the solid lubricant to the copper-coated iron powder is 4 to 7 wt.%. COPYRIGHT: (C)2007,JPO&INPIT
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