发明名称 |
FLUID DYNAMIC BEARING UNIT |
摘要 |
The present invention provides a fluid dynamic bearing unit (1) which has a resin member having high oil resistance, high dimensional accuracy and improved fixing strength and can exhibit stable high bearing performances. A housing (7) which is in contact with ester-based lubricating oil is formed of a resin composite using mixture of a non-crystalline resin and a crystalline resin as a base resin. At this time, a resin selected from a group of constituting polyphenyl sulfone (PPSU), polyether sulfone (PES), polyether imide (PEI) and polyamide imide (PAI) is used as the non-crystalline resin and a resin selected from the group consisting of liquid-crystalline polymer (LCP), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polybutylene terephthalate (PBT), thermoplastic polyimide (TPI) and polyethylene naphthalate (PEN) is used as the crystalline resin.
|
申请公布号 |
WO2007043604(A8) |
申请公布日期 |
2008.07.24 |
申请号 |
WO2006JP320365 |
申请日期 |
2006.10.05 |
申请人 |
NTN CORPORATION;SOLVAY ADVANCED POLYMERS, L.L.C.;BRADEMEYER, DOUGLAS;EL-HIBRI, MOHAMMAD, JAMAL |
发明人 |
BRADEMEYER, DOUGLAS;EL-HIBRI, MOHAMMAD, JAMAL |
分类号 |
F16C17/10;F16C33/20;F16C35/02 |
主分类号 |
F16C17/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|