| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing which can continue to supply a constant volume of a lubricant to a cage guide face even if in a dry run state.SOLUTION: A rolling bearing comprises: an inner ring 11 connected to a rotating shaft 17; an outer ring 12 arranged outside the inner ring 11: a plurality of rolling bodies 15 arranged between the inner ring 11 and the outer ring 12; and a cage 16 which holds a plurality of the rolling bodies 15. The rolling bearing supplies a lubricant from the rotating shaft 17 to an outside diameter face 11b of the inner ring via a penetration hole 22 which is formed at the inner ring 11, and extended to a radial direction. The inner ring 11 comprises a lubricant holding groove 19 communicating with the penetration hole 22 at an inside diameter face 11a, and a lubricant holding material 24 for storing the lubricant is arranged in the lubricant holding groove 19.SELECTED DRAWING: Figure 1 |
