| 摘要 |
PROBLEM TO BE SOLVED: To achieve a conductive rolling bearing in which sufficient conductivity is obtained with temporal stability even when no enclosing conductive grease is applied within the rolling bearing. SOLUTION: In the rolling bearing including a retainer 4 which rotatably retains a plurality of rolling elements 3 made of a steel ball between an inner ring 1 and an outer ring 2, it is provided as a conductive rolling bearing which have the retainer 4, the rolling elements 3 and conductive resin coating films 1a, 2a, 3a, 4a which contain an expanded graphite on surface of the inner ring 1 and the outer ring 2. The expanded graphite forms the conductive resin coating film on the surface of bearing components by mixing into a resin binder and blending of an appropriate amount of solvent. The excellent conductivity and solid lubricating function due to the expanded graphite are revealed efficiently and the effect of sufficient conductivity is obtained with temporal stability. COPYRIGHT: (C)2010,JPO&INPIT
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