| 摘要 |
PROBLEM TO BE SOLVED: To reduce fluctuations of torque and resonance.SOLUTION: A rolling bearing device 1 includes: two rolling bearings 10, 20 which include inner wheels 11, 21 and outer wheels 13, 23 arranged concentrically and a plurality of rolling bodies 15, 25 arranged with an interval in the circumferential direction in an annular space between the inner wheels 11, 21 and the outer wheels 13, 23, and are arranged with an interval in the axial direction; and a shaft 31 fitted to the inner wheels 11, 21 of the rolling bearings 10, 20; wherein the rolling bearings 10, 20 have reference surface parts 11a, 21a and protruded surface parts 11b, 21b protruded in a radial direction with respect to the reference surface parts 11a, 21a on at least one side of an inner circumferential surface of the inner wheels 11, 21, and the protruded surface parts 11b, 21b are fixed to the outer circumferential surface of the shaft 31 in a press fit condition. |
