CHARGE CONTROL AGENT FOR FLUID DYNAMIC BEARING MOTOR LUBRICANT
    10.
    发明申请
    CHARGE CONTROL AGENT FOR FLUID DYNAMIC BEARING MOTOR LUBRICANT 有权
    流体动力轴承电机润滑剂充电控制剂

    公开(公告)号:US20160086631A1

    公开(公告)日:2016-03-24

    申请号:US14495124

    申请日:2014-09-24

    摘要: Embodiments disclosed herein generally relate to magnetic recording systems having a spindle motor and, more particularly, to an optimized lubricant for bearings within the spindle motor. A lubricant used in a fluid dynamic bearing motor has an antioxidant additive and a charge control agent dissolved in a diester base oil. The charge control agent is chemically attached to the same diacid reactant used in the diester lubricant base oil, and is prepared through an esterification reaction. The charge control agent is then dissolved in the lubricant base oil. The charge control agent is soluble in the lubricant, and is resistant to free radical oxidation. The charge control agent effectively controls the charge of the lubricant by creating electron donor/acceptor sites in the lubricant, facilitating an independent electronic pathway through the lubricant.

    摘要翻译: 本文公开的实施例通常涉及具有主轴电机的磁记录系统,更具体地,涉及用于主轴电动机内的轴承的优化润滑剂。 在流体动力轴承电动机中使用的润滑剂具有溶解在二酯基础油中的抗氧化添加剂和电荷控制剂。 电荷控制剂化学连接到二酯润滑剂基础油中使用的相同的二酸反应物,并通过酯化反应制备。 然后将电荷控制剂溶解在润滑油基础油中。 电荷控制剂可溶于润滑剂,耐自由基氧化。 电荷控制剂通过在润滑剂中产生电子给体/受体位点来有效地控制润滑剂的电荷,从而促进通过润滑剂的独立电子通路。