发明名称 |
BEARING LUBRICANT, BEARING AND DISK DRIVE DEVICE |
摘要 |
A bearing lubricant includes a base oil containing an ester compound consisting of 2-ethyl-2-methyl-1,3-propanediol and at least one of carboxylic acids having 5 to 12 carbon atoms, the ester compound being represented by the following formula (1), in which the base oil has a kinetic viscosity at approximately 40° C. of approximately 7 to 15 mPa, and has a pour point of approximately −60° C. or less: where R1 and R2 represent hydrocarbon groups having 4 to 11 carbon atoms. |
申请公布号 |
US2011109995(A1) |
申请公布日期 |
2011.05.12 |
申请号 |
US20090616110 |
申请日期 |
2009.11.10 |
申请人 |
ALPHANA TECHNOLOGY CO., LTD.;BALBIS CO., LTD. |
发明人 |
KODAMA MITSUO;YAMADA TAKUJI;ANZAI HIROYUKI |
分类号 |
G11B5/60;C07C69/34;C10M105/36;C10M137/04 |
主分类号 |
G11B5/60 |
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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