| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing device having less reduced durability by improving the sealing performance of a sealing device. <P>SOLUTION: The rolling bearing device 1 comprises inner rings 12, 13, an outer ring 11, and the sealing device 20 having a seal case 22 fixed to the outer ring 11. The seal case 22 has a fixed portion 23 pressed into the outer ring 11. The fixed portion 23 has a first cylinder portion 41, a second cylinder portion 42 provided in parallel to the first cylinder portion 41 in the axial direction, an annular recessed portion 43 laid between both cylinder portions 41, 42 to linking them to each other, and an annular protrusion 44 protruded from a bottom 43a of the annular recessed portion 43 to the radial outside along the peripheral direction and having a front end pressed into a shoulder inner peripheral face 11d in the state of contacting the shoulder inner peripheral face 11d with plastic deformation. <P>COPYRIGHT: (C)2009,JPO&INPIT |
