| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing which is suitably used in an actuator of an HDD and excellent in fretting wear resistance, and which has long life, low torque and low torque variation. SOLUTION: This rolling bearing includes an inner ring having an inner ring raceway track, an outer ring having an outer ring race track, and plural rolling elements disposed between the inner ring raceway track and the outer ring raceway track, wherein at least one rolling surface of the inner ring raceway track, the outer ring raceway track and the rolling elements is formed by diamond like carbon and the thickness thereof is in the region of 0.2-2μm.
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