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Ball-less bearings rotate. In recent years, the first permanent magnet bearing centrifugal pump in the world has been developed successfully. The invention challenges the traditional concept of mechanical rotation, that is, "no shaft, no shaft, no Taizhou NSK bearing".
新型永磁轴承离心泵仅具有转子、无旋转轴和有形轴承，实现了永磁力作用下无形轴承的功能。研究人员说，永磁体力来自两个磁体之间的力。轴承内圈固定在叶轮上，外环固定在定子上。
永磁泰州NSK轴承离心泵广泛应用于工业、农业、医药等行业。叶轮的形状像飞碟，在永磁力的作用下处于自**度全悬浮状态。电机轴拉紧一个盘以吸引固定在泵体叶轮上的另一个盘旋转。叶轮的旋转驱动叶轮中的液体旋转以产生离心力。当流体到达叶轮周边时，流速较高，当流体流出离心泵时，流速降低。流体的部分动能转换成压力能，从而完成输送液体的过程。
永磁轴承离心泵具有三个优点：
Permanent magnet bearing centrifugal pump has three advantages:
首先，转子与泵体之间没有*机械接触和摩擦噪声，这使得离心泵体积更小，能*量效率更高，应用更广泛。实验表明，永磁泰州NSK轴承离心泵无需旋转轴和机械轴承即可输送液体。
Firstly, there is no mechanical contact and friction noise between the rotor and the pump body, which makes the centrifugal pump smaller, more efficient and more widely used. Experiments show that the permanent magnet Taizhou NSK bearing centrifugal pump can transport liquid without rotating shaft and mechanical bearing.
其次，永磁轴承离心泵可以无机械磨损、无润滑、无密封、无维护地无限期运行。
Secondly, permanent magnet bearing centrifugal pump can operate indefinitely without mechanical wear, lubrication, sealing and maintenance.
第三，永磁轴承的应用表明，传统轴承不是不可缺少的。科学家们说，永磁轴承离心泵的叶轮只有当永磁力和流体力的所有组合力平衡时才能稳定地悬浮和旋转。
第四，当粗磨外滚道时，留给精磨的泰州NSK轴承磨削量应该适当。粗磨滚道的椭圆度、圆度、滚道位置、滚道摆动和沟槽精度应保证满足工艺要求，这是不容忽视的。如果粗磨滚道的精度较差，为了使精磨滚道的精度满足工艺要求，需要人工提高粗磨保持率。
Fourthly, when rough grinding the outer raceway, the grinding quantity of Taizhou NSK bearing left for fine grinding should be appropriate. The ellipticity, roundness, raceway position, raceway swing and groove accuracy of rough grinding raceway should be guaranteed to meet the technological requirements, which can not be ignored. If the accuracy of rough grinding raceway is poor, in order to make the precision of fine grinding raceway meet the technological requirements, it is necessary to improve the roughing retention rate manually.
第五，随着加工余量的增加，精*密磨削的进给量和切削量将增加。从长远来看，这会影响机床的精度，导致精*密磨削精度的下降。实验表明，当深沟球轴承的椭圆度、边缘圆度、滚道位置、滚道侧摆和泰州NSK轴承滚道槽精度满足技术要求时，滚道精磨的粗磨余量应为0.1个百分点左右。-0.15mm。此外，当外滚道粗糙时，不允许燃烧。
Fifth, with the increase of machining allowance, the feed and cutting amount of precision grinding will increase. In the long run, this will affect the accuracy of machine tools, resulting in a decline in precision grinding accuracy. Experiments show that when the ellipticity, edge roundness, raceway position,
文章来自：泰州SKF轴承 www.wh-skf.com
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