| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling bearing device capable of properly adjusting a preload in response to a temperature change. <P>SOLUTION: This rolling bearing device has a detecting means 26 for interposing a gear part 18 and a rolling unit 19 arranged so that its one end surface 20a can abut on an outer ring 15, between an end surface 15b on one side in the axial direction of the outer ring 15 of a rolling bearing 11 and an inner end surface 13a of a housing 13 opposed to this end surface, arranged in a housing 13 and detecting the thermal expansion of the housing 13, a driving means 28 rotating the gear part 18, and a control means 27 controlling the driving means 28 based on a detecting signal of the detecting means 26. In the rolling unit 19, a rolling member cage 22 is fixed to the housing 13, and a rolling member cage 23 is fixed to the other end surface 20b of the gear part 18. The rolling member cage 22 has an inclined face on one side in the peripheral direction, and the rolling member cage 23 has an inclined face on the other side in the peripheral direction. A pocket 25 holding a rolling member 24 is formed by opposing the mutual these two inclined faces, and the rolling member 24 is held in the pocket 25 in a state of contacting with the respective inclined faces. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
