| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling device whose brake force can be changed according to a load.SOLUTION: The rolling device is composed of: a first rolling bearing 70 having a first outer ring 73, a first inner ring 71 and a first rolling element 72; a second rolling bearing 60 having a second outer ring 63, a second inner ring 61 and a second rolling element 62; and a support shaft 20 which is rotatably supported by the first rolling bearing 70 and the second rolling bearing 60. The first rolling bearing 70 is elastically supported in a housing 11 in the radial direction of the support shaft 20 via an elastic member 74, a gap is formed between the housing 11 and the second rolling bearing 60 in the radial direction of the support shaft 20, a second inner ring side elastic layer 61a having a second inner ring side raceway on which the second rolling element 62 rolls is formed at the second inner ring 61, when a radial load of the support shaft 20 is large, the gap is eliminated by the compression of the elastic member 74 and the second rolling bearing 20 contacts with the housing 11, and the second inner ring side elastic layer 61a is compressed by the second rolling element 62. |
