| 摘要 |
The present invention addresses the problems of eliminating the need for an arcuate mold for each bearing size by designing the shape of a bag body (46a) forming a lubricating oil tank (46), and enabling efficient use of an accommodating space of the lubricating oil tank formed in an annular housing even when a spacer is large in width. A roller bearing device (10) comprising a combination of a roller bearing (11) and an oil-feeding unit (13) provided with at least the lubricating oil tank (46) having a lubricating oil discharge port, the oil-feeding unit (13) being installed in a space between an inner ring (17) and an outer ring (18) of a spacer (16) provided adjacent to the roller bearing (11), wherein: the accommodating space of the lubricating oil tank is substantially equal in axial width to the spacer, the circumferential length of the accommodating space being within the range of a center angle (θ) viewed along the axial direction of the spacer (16); and the lubricating oil tank (46) accommodated in the accommodating space is formed by the rectangular bag body (46a) of which the width is substantially equal to the axial width of the accommodating space and the length is substantially equal to the center diameter (A × π × (θ/360)) of the spacer. |
