| 摘要 |
PROBLEM TO BE SOLVED: To actualize quick discharge of extra lubricating oil from a rolling bearing or prevent the supply of a predetermined amount of lubricating oil into the rolling bearing. SOLUTION: In a shoulder 12 of an inner ring 1 of a deep groove ball bearing 101, a grooved discharge oil path 13 is formed ranging from a width center line L1 of a bearing width toward the downstream side in a rotating direction P thereof in inclination at a predetermined angleθ1 to an axial line C of the deep groove ball bearing 101. In a shoulder 15 of an outer ring 2 of the deep groove ball bearing 101, a grooved discharge oil path 16 is formed ranging from a width center line L2 of the bearing width toward the upstream side in the rotating direction P of the inner ring 1 in inclination at a predetermined angleθ2 to the axial line C of the deep groove ball bearing 101. The balls 3 are raised up during associative rotation to discharge extra lubricating oil 11 out of lubricating oil 11 supplied to raceway surfaces 1a, 2a via the discharge oil paths 13, 16 to the outside. COPYRIGHT: (C)2008,JPO&INPIT |
