| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent deterioration of sealing properties of a seal ring with a filter mounted to a roller bearing. <P>SOLUTION: A rolling element 13 is incorporated between an outer bearing ring 11 and an inner bearing ring 12; a seal ring 20 covers the opening of at least one end of the bearing space formed between the outer bearing ring 11 and the inner bearing ring 12; and a filter 23 covering an oil hole 22 formed in the seal ring 20 captures foreign matter included in lubrication oil. The seal ring 20 is locked with one of the outer bearing ring 11 or the inner bearing ring 12. A circular member 40, which is formed of a material softer than that of the seal ring 20 is fixed to the seal ring 20. A lip 41 is constituted of the circular member 40, opposing to the outer bearing ring 11 or to the other end of the inner bearing ring 12 separated with a space or attached thereto. <P>COPYRIGHT: (C)2013,JPO&INPIT |
