| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing device capable of inducing lubricating oil attached on an outer peripheral surface of a spacer member toward a discharge hole in a lower part of a bearing housing.SOLUTION: The device comprises a bearing housing 10, first and second both rolling bearings 20, 30 assembled in both housing parts 11, 12 of the bearing housing 10 and arranged on an axis of a rotary shaft 3 with a prescribed interval, and a cylindrical spacer member 40 arranged between the first and second both rolling bearings 20, 30 and provided with a center hole into which the rotary shaft 3 is inserted. A discharge hole 16 for lubricating oil is formed in a part situated between the first and second both rolling bearings 20, 30 in the lower part of the bearing housing 10. An outer peripheral surface 41 of the spacer member 40 has both ends thereof formed into an outer diameter dimension close to an outer peripheral dimension of ends of respective inner rings 21, 31 in the both first and second both rolling bearings 20, 30, and is formed in a tapered diameter expanded gradually toward the discharge hole 16 from both ends. |
