| 摘要 |
PROBLEM TO BE SOLVED: To provide a deterioration detector of a lubricant, capable of easily detecting the deterioration of the lubricant in a bearing or the like by a compact configuration, and to provide a bearing equipped with the deterioration detector of the lubricant. SOLUTION: The deterioration detector 1 of the lubricant includes a light-emitting element 2, a light-detecting element 3, an optical fiber 4 on a light-projecting side, an optical fiber 5 on a light-detecting side, and a determining means 7. The optical fiber 4 on the light-projecting side is arranged so that the base end thereof is opposite to the light-emitting element 2, and the leading end thereof is positioned in the lubricant 6 or in the vicinity of the lubricant 6; the optical fiber 5 on the light-detection side is arranged so that its base end is opposite the light-detecting element 3, while its leading end is positioned in the vicinity of the leading end of the optical fiber 4 on the light-projection side and the light is projected from the light-emitting element 2 via the optical fiber 4 on the light projection side and the scattered light reflected by the lubricant 6 is guided to the light-detecting element 3. The determining means 7 detects the amount of the foreign matters, mixed with the lubricant 6 from the output of the light-detecting element 3. COPYRIGHT: (C)2008,JPO&INPIT
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