| 摘要 |
PURPOSE:To perform lubrication without lowering the loading capacity of bearing by providing a lubricant supplying hole to a collar fitted to the neck part of a roll and supplying a lubricant to the clearance between the neck part and the bore surface of a rolling bearing. CONSTITUTION:The bore surface 211 of an inner ring of rolling bearing is fitted loosely with clearance to the neck part 11 of a rolling roll 1. A lubricant supplying hole 32 is provided to the circumferential direction of a collar 3, which is fitted to the neck part 11 and is in contact, with the inner ring surface of a rolling bearing 2 at its one-end face. Then a lubricant is supplied from the supplying hole 32 to the clearance between the neck part 11 and the bore surface 211. By using the device mentioned above, the lubricant is supplied by a simple mechanism and a lubrication is performed without lowering the loading capacity of bearing 2. |
