| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing capable of preventing rolling noises from enlarging at the beginning of rotation or the like. SOLUTION: One ball 4a is formed by a material having a linear expansion coefficient smaller than those of an inner ring 2 and outer ring 3 (Bearing steel) among a plurality of balls 4, and diameters (Dimension in a radial direction) of balls 4a and 4b are set up at a value in which the balls are capable of rotating in a state that maintains an appropriate radial clearance in a high temperature range such as 100 to 140 deg.C.
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