| 摘要 |
PROBLEM TO BE SOLVED: To suppress increase of load torque and improve durability.SOLUTION: A rolling bearing device 3 includes: two rolling bearings 10, 20 that include inner rings 11, 21 and outer rings 13, 23 arranged coaxially, and a plurality of rolling bodies 15, 25 arranged in a circumferential direction with intervals in an annular space between the inner rings 11, 21 and the outer rings 13, 23; and a shaft 31 that is fitted to the respective inner rings 11, 21 of the two rolling bearings 10, 20, and comprises stainless steel for fixing the inner rings 11, 21 in a state where a preload is applied. The two inner rings 11, 21, when the shaft 31 is fixed to a base housing 1 with predetermined axial force applied to the shaft 31, are fixed to the shaft 31 with a distance in which an excessive preload does not occur.SELECTED DRAWING: Figure 2 |
