| 摘要 |
PROBLEM TO BE SOLVED: To compatibly attain the prevention of a temperature rise in a bearing, the prevention of generation of sludge, and an increase in a penetrating oil quantity in the axial direction. SOLUTION: This roller bearing 40 is formed by nonseparably integrating three members of an inner race 41 having a collar part 41b on both ends in the shaft direction of a raceway surface 41a, a plurality of rollers 42 arranged along the raceway surface 41a, and a cage 43 for holding the rollers 42, and is interposed between a housing 10 and a rotary shaft 20, and is supplied with oil from the side, and is constituted so that a corner part of the cage 43 is formed in a round shape, and oil introducing grooves 43d1 and 43d2 penetrating through both sides in the axial direction are arranged in a cage column 43b. COPYRIGHT: (C)2006,JPO&NCIPI
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