发明名称 |
Dynamic pressure bearing made of porous material |
摘要 |
The invention provides a dynamic pressure bearing capable of generating enough dynamic pressure even with use of a porous material. Dynamic pressure grooves 1 at an inner circumferential surface of a sleeve 3 made of porous material are formed by rolling process. Voids of the porous material at a surface of the dynamic pressure grooves 1 are crushed by this rolling process, making the dynamic pressure grooves 1 airtight. Further, the inner circumferential surface at which the dynamic pressure grooves 1 are formed is subjected to sizing process, by which a bearing surface 2 of the sleeve 3 is crushed so that substantially no voids are present. <IMAGE> |
申请公布号 |
EP1435465(B1) |
申请公布日期 |
2006.11.02 |
申请号 |
EP20040008668 |
申请日期 |
1998.04.11 |
申请人 |
JTEKT CORPORATION |
发明人 |
TAKAHASHI, TAKESHI;ONISHI, MASAYOSHI |
分类号 |
F16C32/06;B22F3/11;B22F5/10;F16C17/02;F16C33/10;F16C33/14 |
主分类号 |
F16C32/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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