| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device for a bearing capable of suppressing an increase of the interference of seal by mitigating a change of the interference of seal lip in accordance with the occurrence of inclination angle and capable of reducing a torque of seal without deteriorating airtightness. <P>SOLUTION: The sealing device for a bearing includes: a first seal body 20 which is fitted to one side bearing ring 2 and is disposed continuously along a circumferential direction so as to cover the inner part of a bearing; a first slinger 24 which is fitted to the other side bearing ring 4 and is disposed continuously along the circumferential direction so as to cover the inner part of the bearing; and an intermediate seal structure which is interposed relatively rotatably between the first seal body and the first slinger and is disposed continuously along the circumferential direction so as to cover the inner part of the bearing. The intermediate seal structure is configured by integrating: a second slinger 22s with which seal lips 28a to 28c molded to the first seal body are brought into sliding contact; and a second seal body 22t to which the seal lips 32a to 32c brought into sliding contact with the first slinger are molded. <P>COPYRIGHT: (C)2013,JPO&INPIT |
