南京SKF滚道声响鉴定及控制常识

南京SKF轴承的滚道声及其控制方法滚道声是轴承运行过程中滚动体在滚道表面产生的一种滑动连续声。这是一种特殊的基本声音，所有滚动轴承都会产生。一般的轴承声音是滚道声加上其余声音。滚珠轴承滚道噪声不规则，频率大于1000 Hz。

Raceway sound of Nanjing SKF bearing and its control method Raceway sound is a kind of sliding continuous sound produced by rolling element on the raceway surface during bearing operation. This is a special basic sound, and all rolling bearings will be generated. The general bearing voice is raceway sound plus the rest of the sound. Ball bearing raceway noise is irregular, and the frequency is greater than 1000 Hz.

它的主频率不随速度变化，但其总声压水平随速度增加。南京SKF轴承的声压级随粘度的增加而降低，而小型陀螺声学轴承的声压级随粘度的增加而增加，达到约20mm2/s。

Its main frequency does not change with speed, but its total sound pressure level increases with speed. The sound pressure level of Nanjing SKF bearing decreases with the increase of viscosity, while that of ***all gyro bearing increases with the increase of viscosity, reaching about 20mm2/s.

控制滚道噪声的方法包括选择低噪声轴承，即具有小波纹波的轴承，以及仔细选择操作条件。滚道的噪声常常影响南京SKF轴承整机的噪声，降低滚道的噪声，降低整机的噪声。

Methods for controlling raceway noise include selecting low noise bearings, i.e. bearings with w***elet ripples, and carefully selecting operating conditi***. The noise of the raceway often affects the noise of the SKF bearing machine in Nanjing, reduces the noise of the raceway and reduces the noise of the whole machine.

南京SKF轴承润滑脂的硬度随着温度的降低而增加，并会产生一些故障征兆影响。当温度下降到某一点时，润滑剂停止流动。矿物油的倾点一般在-20～30℃之间，但倾点一般低于使用温度。

The hardness of Nanjing SKF bearing grease increases with the decrease of temperature, and some fault symptoms may occur. When the temperature drops to a certain point, the lubricant stops flowing. The pour point of mineral oil is generally between -20 and 30 C, but the pour point is generally lower than the service temperature.

润滑脂不能完全达到润滑点，在较低的温度下需要进一步润滑。如果基础油丢失，则表面仍然有油，但南京SKF轴承润滑能力几乎为零，并且在氧化过程中可以观察到油稠度的变化，例如硬化或稀释和油流。

Grease can not reach the lubrication point completely, and further lubrication is needed at lower temperature. If the base oil is lost, there is still oil on the surface, but the lubrication capacity of Nanjing SKF bearings is almost zero, and changes in oil c***istency, such as hardening or dilution and oil flow, can be observed during oxidation.

轴承润滑脂的工作温度：润滑脂的一个指标是滴点，但滴点不等于可容工作温度，特别是在低温下。即使轴承的润滑脂超过了滴点，即使它冷凝下来，仍然存在一些问题。

Working temperature of bearing grease: One index of grease is the drop point, but the drop point is not equal to the tolerable working temperature, especially at low temperature. Even if the grease of the bearing exceeds the dropping point, even if it condenses, there are still some problems.

文章来自：南京SKF轴承 www.wh-skf.com

文章来自：南京INA轴承 www.ina-china.cn

文章来自：南京NSK轴承 www.klbbearings.com

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