| 摘要 |
PROBLEM TO BE SOLVED: To provide a thrust bearing whose wear is avoided by preventing the entry of muddy water from a gap between race portions or between cases into the bearing. SOLUTION: A rolling element storage space 25 in which polymer lubricant 35 is filled serves as a cage. The polymer lubricant 35 is filled in part of an inside gap portion 20 in the form of exposing a surface 35a to the inside gap portion 20. The polymer lubricant 35 is also filled in part of an outside gap portion 21 in the form of exposing a surface 35b to the outside gap portion 21. The polymer lubricant 35 filled in the inside gap portion 20 and the outside gap portion 21 serves as a seal portion to prevent the passage of muddy water or dust from a space outside the bearing to the rolling element storage space 25. COPYRIGHT: (C)2007,JPO&INPIT |
