In high speed rotation, the strong airflow inside ball bearing cavity has become a key factor which seriously affects bearing lubrication performance. By adding groove structures to the non-contact area of bearing inner ring surface, a guiding method for lubrication enhancement was proposed. Via simulating an oil droplet flowing on the grooved surface, the guiding mechanism for groove structure was analyzed, and the capillary force played an important role during the guiding process. The influence of groove structure parameter and bearing motions on guiding performance were all discussed, the groove structure was designed and experimentally verified. Compared with the general bearing, grooved bearing has a lower temperature rise, which indicates the effect of groove structure on bearing lubrication enhancement.

在高速旋转中，滚珠轴承腔内部强大的气流已成为严重影响轴承润滑性能的关键因素。通过在轴承内圈非接触区域增加沟槽结构，提出了一种增强润滑的指导方法。通过模拟在凹槽表面流动的油滴，分析了凹槽结构的导向机理，毛细力在导向过程中起着重要作用。讨论了凹槽结构参数和轴承运动对导向性能的影响，设计了凹槽结构并进行了实验验证。与普通轴承相比，开槽轴承具有较低的温升，这表明开槽结构对轴承润滑的影响。