| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing device equipped with an oil supply unit that can supply lubricating oil for a long period of time while spreading the lubricating oil uniformly on the whole bearing by supplying the lubricating oil from a wide range in the circumferential direction of the bearing. <P>SOLUTION: A casing 24 constituting the oil supply unit 13 includes an oil supply tank 38 and an oil storage tank 39 partitioned in an axial direction. The hole diameter of a nozzle hole 43 communicating with the oil supply tank 38 is formed in a size that can cause a capillarity. A suction tube 54 connected to a pump communicates with the oil storage tank 39, and a discharge tube 55 connected to a discharge port of the pump penetrates the oil supply tank 38 and communicates with the oil storage tank 39. The discharge tube 55 in the oil supply tank 38 is provided with a discharge opening, and a lubricating oil permeation body such as grease for sealing the nozzle hole 43 is stored in the oil supply tank 38. <P>COPYRIGHT: (C)2013,JPO&INPIT |
