发明名称 |
Dynamic bearing device and motor having the same |
摘要 |
In the dynamic bearing device, a chamfer having a larger percentage of surface openings is continuous to the outer diameter side of a lower end surface of a bearing member, which constitutes a thrust bearing gap of a first thrust bearing part. A lubricating oil in pores of the bearing member is supplied to a gap portion through the surface openings of the chamfer, so that the gap portion can be kept at a positive pressure without becoming a negative pressure.
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申请公布号 |
US2003002757(A1) |
申请公布日期 |
2003.01.02 |
申请号 |
US20020178952 |
申请日期 |
2002.06.25 |
申请人 |
HAJOTA KIMIHIKO;ITSUSAKI HIRONORI;NAKAZEKI TSUGITO;MORI NATSUHIKO |
发明人 |
HAJOTA KIMIHIKO;ITSUSAKI HIRONORI;NAKAZEKI TSUGITO;MORI NATSUHIKO |
分类号 |
F16C17/10;F16C33/10;G11B19/20;H02K5/16;H02K7/08;H02K21/22;(IPC1-7):F16C32/06 |
主分类号 |
F16C17/10 |
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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