| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing for a robot capable of effectively preventing flaking on a rolling surface due to hydrogen brittleness. SOLUTION: In the rolling bearing 1 for a robot for rotatably supporting a rotary section of the industrial robot, the rolling bearing 1 has an inner ring 2 and outer ring 3, and a plurality of rollers 4 interposed between the inner ring 2 and outer ring 3, and also provides a seal member 6 for sealing grease compositions 7 in the vicinity of the rollers 4 on openings 8a and 8b on both ends in an axial direction of the inner ring 2 and outer ring 3. The grease compositions 7 are prepared by combining additives into the base grease made from base oil and thickener, the additives include at least one magnesium additive selected from inorganic magnesium and organic magnesium, and a combining ratio of the magnesium additives is 0.05 to 10 pts.wt. to the base grease of 100 pts.wt. COPYRIGHT: (C)2007,JPO&INPIT |
