| 摘要 |
PROBLEM TO BE SOLVED: To avoid the impairment of seal performance, related to a seal device with a filter arranged at a rolling bearing.SOLUTION: There is employed a rolling bearing having a seal device S in which a rolling body 3 is assembled into a bearing space between an outside raceway ring 1 and an inside raceway ring 2, and a through-hole 23 through which a lubricant can pass to at least one opening in the axial direction of the bearing space, and a solid foreign matter cannot pass thereto is formed at a metal-made ring member 20. One of the outside raceway ring 1 and the inside raceway ring 2 is a fixed-side raceway ring, and the other is a rotation-side raceway ring, the ring member 20 is locked to the fixed-side raceway ring, a metal-made sub-ring member 30 different from the ring member 20 is fixed to the rotation-side raceway ring, and a labyrinth seal structure is formed in a clearance between the ring member 20 and the sub-ring member 30. |
