| 摘要 |
PROBLEM TO BE SOLVED: To provide the air oil lubricating structure of a roller bearing which keeps sufficient lubricating performance while reducing of noise is possible. SOLUTION: The outer diameter surface of the inner ring 2 of a roller bearing 1 is provided with a slope 2b parallel to a rolling surface 2a of the inner ring 2. The slope 2b is provided with a nozzle member 6 running with a gapδin between. The nozzle member 6 is provided with an air oil discharge hole 8 opened to the gapδ. The nozzle member 6 is a partial length in circumferential direction of the inner ring 2. A nozzle fitting ring such as inter-outer ring seat 10 attaches the nozzle member 6 to a housing 9. An exhaust path 14 penetrating from the inner diameter surface to the outer diameter surface is provided to a part of circumferential range which is the remaining section of the circumferential range provided with the nozzle member 6 in the nozzle fitting ring. COPYRIGHT: (C)2005,JPO&NCIPI
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