| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rolling bearing device capable of preventing the loss of a pre-load due to a temperature increase.SOLUTION: A rolling bearing device comprises: a bearing 10 that includes a fixed ring 12, a rotary ring 11 radially facing this fixed ring 12, and a rolling element 13 arranged between the fixed ring 12 and the rotary ring 11 so that the rolling element 13 can roll, a pre-load in an axial direction being applied to the bearing 10; and a spacer 20 arranged between the fixed ring 12 and an annular housing 31 supporting this fixed ring 12 in the axial direction. The spacer 20 includes: a spacer main body 21 that includes a first member 23 and a second member 24 superimposed on the first member 23 in the axial direction via spirally inclined superimposed surfaces 23a and 24a, an axial width of the spacer main body 21 changing by relatively moving the first member 23 and the second member 24 in a circumferential direction; and an acting member 22 relatively moving the first member 23 and the second member 24 in a direction of increasing the axial width of this spacer main body 21.</p> |
