| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing device certainly supplying the appropriate amount of lubricating oil without an excess or shortage. Ž<P>SOLUTION: This rolling bearing device 3 rotatably supporting a spindle 2 with respect to a housing 1 includes an inner ring 31, an outer ring 32, and a plurality of rolling elements 33 arranged between the inner ring 31 and the outer ring 32. The outer ring 32 is provided with porous bodies 35 provided on adjacent surfaces 32b located adjacently to the rolling raceway surfaces 32a of the rolling element 33, and supply conduits 36 supplying lubricating oil to the porous bodies 35. Each of the porous bodies 35 has a lubricating oil supply port 35a formed in the surface of an exposed surface on the side of each rolling raceway surface 32a, and a blocking layer 35b provided on the surface of the exposed surface except for the lubricating oil supply port 35a for blocking the lubricating oil. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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