| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve oil feeding performance between an outer race and a clearance forming part for forming a clearance for making lubricating oil pass by providing a rolling bearing capable of increasing a speed, elongating a service life and attaining maintenance-free, by using only a lubricant sealed in the bearing. <P>SOLUTION: A lubricant reservoir forming part 6, the clearance forming part 7 and an oil feeding material 12 are arranged in the rolling bearing having an inner race 1, an outer race 2 and a plurality of rolling bodies 3 interposed between raceway surfaces 1a and 2a of the inner and outer races 1 and 2 and held by a cage 4. The lubricant reservoir forming part 6 is arranged in contact with the outer race 2 by forming a lubricant reservoir 8 inside. The clearance forming part 7 is a member for forming the clearance 14 communicating to the vicinity of the raceway surface 2a of the outer race 2 from the lubricant reservoir 8 along a peripheral surface for forming its raceway surface 2a, and arranged in the outer race 2. The oil feeding material 12 is arranged to the middle in the bearing shaft direction of the clearance forming part 7 from the lubricant reservoir 8 of the lubricant reservoir forming part 6. A clearance width to the tip of the clearance forming part 7 from the tip of the oil feeding material 12 in the clearance 14 is formed narrower than that of the other part. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
