| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance muddy water resistance by controlling infiltration of muddy water from the clearance between the side surface of a flange part of an inner race and an outer race of the rolling bearing device. <P>SOLUTION: This rolling device includes the inner race, an outer race part member 45, balls 50 (rolling elements) which is set rotatably between the inner race and outer race, a sealing device 70 which seals the edge part between the inner and outer races. The inner race is supported rotatably against the outer race part member 45 via the balls 50. A slinger 90 (ring like body) which covers the part from an outer peripheral surface of the one end of the inner race to the side surface of a wheel side flange part 21 is fixed at one end of the inner race. The outer peripheral surface of the slinger 90 is constituted as a slide surfaces 92a, 94a on which a seal part member of a sealing device 70 slides. On the end of the outer peripheral side of the slinger, provided is an elastic seal part 96 (elastic member) which is capable of elastic deformation. This elastic seal part 96 seals a gap 66 between the side surface of the inner race wheel side flange part 21 and the outer race part member 45. <P>COPYRIGHT: (C)2013,JPO&INPIT |
