| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent oil content of grease from leaking to the outside from a bearing unit. <P>SOLUTION: In the bearing unit in which a rolling bearing 10 for rotatably supporting an axle 1 and a sealing device 30 for sealing one end of the rolling bearing 10 are provided, the sealing device 30 includes an outer ring side extension member 32 provided on an axial extension line with respect to an outer ring 11, an inner ring side extension member 21 provided on an axial extension line with respect to an inner ring 12, and a sealing member 31 provided on an inner circumference of the outer ring side extension member 32 to make slide contact with the inner ring side extension member 21, the inner ring side extension member 21 includes a cylinder part 20a and a cover 20 protruded radially inward of the cylinder part 20a, a recess 20d is provided on the cover 20, and a tip of the outer ring side extension member 32 is loosely fitted into the recess 20d to partition a space between the outer ring side extension members 32 and the inner ring side extension member 21 from the outside, oil absorption members 52 are separately provided to the inner ring side extension member 21, between the recess 20d and the sealing member 31, in the inner circumference of the outer ring side extension member 32. <P>COPYRIGHT: (C)2012,JPO&INPIT |
