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发明公开
CN103807304A 轴承、轴承装置及记录装置 有权

轴承、轴承装置及记录装置
摘要：
本发明涉及轴承、轴承装置及记录装置。提供能够降低硬盘的磁性数据的读写错误的轴承、轴承装置及记录装置。具有2个以上的轴承，该轴承由以下构成：配置于同轴上的内圈及外圈；在内圈和外圈之间的圆环状空间沿圆周方向隔开间隔而内置的多个滚动体；以及保持器，该保持器具有将滚动体在将等间隔配置的状态下能够滚动地保持的多个滚动体兜、及配置于滚动体兜之间并储存作为滚动体和内圈及外圈的润滑剂而起作用的润滑脂的凹部状的润滑脂兜，将2个以上的轴承配置在同轴上，和与各自的内圈缔结的轴构成轴承装置，润滑脂至少由基础油和增稠剂构成，并且对于该基础油，使用芳香烃，使该基础油中使用的芳香烃相对于润滑脂的含有量为重量的70%以上。
摘要（英）：

A bearing device has two or more bearings each having an inner ring and an outer ring disposed on the same axis. A plurality of rolling elements are arranged in a ring-shaped region between the inner ring and the outer ring with a gap in a circumferential direction, and a plurality of rolling element pockets hold the rolling elements in a rollable manner at regular intervals from one another. A holder having a grease pocket of concave shape is placed between the rolling element pockets and stores grease serving as a lubricant of the rolling elements. The grease consists of at least a base oil comprised of aromatic carbon and a thickener, the content of the aromatic hydrocarbon being 70 weight % or more of the grease.

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