| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid lubrication bearing device whose service life can be accurately estimated without adding a special structure to the device or performing previous check, when assembling in the device a bearing to be lubricated by a solid lubricant. SOLUTION: A sensor head 41 for a particle counter 4 for counting particles dusted by contact between a roller 13, and a raceway surface is assembled in the vicinity of a position between the roller 13 of the solid lubrication bearing 1 and its raceway surface in accordance with a predetermined positional relation with respect to the roller 13 and its raceway surface. Thus, a certain relation, between the measurement result of a dusting amount by the particle counter 4 and the condition of the bearing, is established. Accurate information about the service life running short can be given to a user at this time, by merely assembling the bearing in the device.
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