LUBRICATING DEVICE OF ROLLING BEARING

摘要

PROBLEM TO BE SOLVED: To provide a lubricating device of a rolling bearing capable of cooling the bearing without having a complicated oil feeding mechanism by efficiently guiding lubricating oil to a raceway surface, while being capable of operating at a high speed without increasing a motive power loss regardless of a bearing size. SOLUTION: This lubricating device of the rolling bearing lubricates the lubricating oil by delivering it in the rolling bearing 1 from a lubricating oil introducing member 7. The lubricating oil introducing member 7 has a delivery port 8 oppositely opened to the width surface of an inner race 2. The outer diameter surface of the inner race 2 is formed in a cylindrical surface shape. The lubricating oil introducing member 7 is formed with a collar-shaped part 10 for guiding the lubricating oil flowing in the bearing from a clearanceδby covering an inner race outer diameter surface 2b via the clearanceδ. This collar-shaped part 10 is extended up to the inner diameter side of a cage 5 for holding a rolling body 4. An inner diameter surface 5a on the collar-shaped part 10 side of the cage 5 is formed in a tapered surface whose central side in the width direction has a large diameter. COPYRIGHT: (C)2006,JPO&NCIPI