With the increase and demand in low voice and low decibel vibration bearing in world market, the research in low noise bearing has become more and more significant.

随着国内外轴承市场对低噪音轴承的需求量的增加、对轴承振动与噪声分贝值越来越低的要求，使得低噪音轴承的研制工作显得日益重要。

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The experimental result shows that the DSP-based digital magnetic levitating bearing control system features advantages of high stability, high control precision, fast response and low noise.

实验结果表明，基于DSP的磁悬浮轴承数字控制系统具有稳定性好、控制精度高、响应快及噪声低等特点。

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The key problems of design of internal grinding machine low noise high-speed bearing were discussed.

针对内圆磨床低噪声高速电主轴设计的诸多关键问题进行了探讨。

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