| 摘要 |
PROBLEM TO BE SOLVED: To improve muddy-water resistance by suppressing intrusion of muddy water at an opening part on the side of a flange part in an annular space between an inner ring and an outer ring of a rolling bearing device for a vehicle.SOLUTION: A rolling bearing device A for a vehicle includes: a hub shaft (inner ring); an outer ring member 45 (outer ring); a ball (rolling body); a sealing device 70 for sealing an opening part 66 on the side of a flange part 21 at a wheel side in an annular space 49. The seal device 70 is provided with a first seal member 80 and a second seal member 90. The first seal member 80 has a first cored bar 81 and a first lip 88 and a first water proof member 89. The second seal member 90 has a second cored bar 91, a second lip 98, and a second water proof member 99. The first lip 88 of the first seal member 80 comes in sliding contact with the outer peripheral face of the second cored bar 91 to seal the opening part 66 and the second lip 98 of the second seal member 90 comes in sliding contact with the first cored bar 81 to seal the opening part 66. |
