ROLLING BEARING

PROBLEM TO BE SOLVED: To further improve the bearing cooling effect of a rolling bearing through which an ambient fluid pass axially.SOLUTION: A rolling bearing comprises: an inner ring 2; an outer ring 4; a plurality of rolling elements 6; and a holder 8, a fluid axially passing through a space between the inner ring 2 and the outer ring 4, the rolling bearing being configured so that the holder 8 includes a plurality of holder segments 10 and support rings 22 annularly holding the holder segments 10, each holder segment 10 includes a pocket 12 and a guide surface 14, and a fluid passage 24 is formed between the adjacent holder segments 10, thereby accelerating an ambient fluid to pass through the fluid passage 24 to improve a bearing cooling effect.SELECTED DRAWING: Figure 1 【課題】周囲流体が軸方向に通過する転がり軸受において、軸受冷却効果を一層高める。【解決手段】内輪2と、外輪4と、複数の転動体6と、保持器8を備え、内輪2と外輪4との間の空間を流体が軸方向に通過する転がり軸受であって、保持器8は、複数の保持器セグメント10と、保持器セグメント10を円環状に保持する支持リング22とで構成され、各保持器セグメント10はポケット12と案内面14を有し、隣り合う保持器セグメント10間に流体通路24を形成することにより、周囲流体の通過を促進して軸受冷却効果を高めた。【選択図】図１