| 摘要 |
PURPOSE:To facilitate lubrication through a penetrating bore in such a way that a penetrating bore is provided into a coupling material in ring-shape which centrically moves and connects two pieces of crossed materials, and this penetrating bore is set opposite to a lubricating port of an aligning device. CONSTITUTION:Crossed materials 15, 24 of two pieces of crossed joint devices 10, 20 are centrically moved and connected by a ring-shaped coupling material 30. And, a spherical material 43 and a sock part 50 which receives it are respectively provided in protrusion, which constitutes an aligning device. In the aligning device, a grease sump space 53 is formed in aligning device, a grease fitting 55 is provided for infusing grease into the space 53. A penetrating bore 35 is provided on the coupling material 30 which is set opposite to the position of this grease fitting 55. |
