| 摘要 |
<p>In the ball bearing, in a space surrounded by an inner ring, an outer ring and sealingportions, adsorbingmaterial coatings formed on outer periphery surfaces of the inner ring, adsorbing material coatings formed on inner periphery surfaces of the outer ring, and adsorbing material coatings formed on inside surfaces of the sealing portions and adsorbing material coatings formed on a non-holding surface of the cage are disposed. The adsorption material coatings may adsorb the wear powder generated from the inner ring, the outer ring, the ball, the cage and the sealing portions and the outgas due to vaporization of the lubricant oil.
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