The occurrence of skidding and overskidding behaviour is likely to scratch rolling element raceways and lead to a significant temperature rise and thermal deformation. The ball-cage interaction and cage whirling motion are likely to oscillate as this skidding is aggravated. To address the damage problems introduced by skidding behaviour, a kinematic-Hertzian contact thermal-elasto-hydrodynamic (KH-TEHD) model with a 5-layer loop structure is proposed. Various factors are considered in the model, including the dynamic beahviour of bearing components, quasi-static analysis on bearing load distribution and deformation of bearing components, and the miscellaneous forces (unbalanced force, collision tangential friction, drag force) acting on the ball and cage. Ball-raceway lubrication, lubricant temperature rise, thermal expansion of shaft and bearing housings, and hydrodynamic pressure acting between the cage surface and guide-ring surface are established in this paper. A 7307AC bearing experimental study under varying operating speeds, axial loads and two lubricating conditions is conducted to validate the accuracy and effectiveness of the KH-TEHD model. The superiority of the developed model is illustrated by comparison with previous models, and the results suggest that the thermal expansion and cage-guide ring hydrodynamic pressure cannot be ignored. After comparisons with literature results, it is found that the overskidding degree is approximately proportional to the square of the bearing size under the same level of operating speed. The maximum thermal deformation at the bearing raceway under starvation lubrication reaches 4 times the ball-raceway clearance. The cage simulation results indicate that the cage whirling oscillation amplitude increases with increasing operating speed and unbalanced mass and generally decreases with increasing axial load. The proposed model and discussion of the results are useful for mitigating the skidding degree under certain conditions and avoiding cage instability and wear.

打滑和过度打滑行为的发生很可能会划伤滚动体滚道并导致显着的温升和热变形。随着这种打滑加剧，球-保持架相互作用和保持架旋转运动可能会振荡。为了解决打滑行为引入的损坏问题，提出了一种具有 5 层回路结构的运动学赫兹接触热弹流体力学 (KH-TEHD) 模型。模型考虑了多种因素，包括轴承部件的动态行为，轴承载荷分布和轴承部件变形的准静态分析，以及作用在球和笼。滚珠滚道润滑，润滑剂温升，本文建立了轴和轴承座的热膨胀，以及作用在保持架表面和导向环表面之间的流体动压力。7307AC 轴承在不同的运行速度、轴向载荷和两种润滑条件下进行了实验研究，以验证 KH-TEHD 模型的准确性和有效性。通过与以前模型的比较说明了所开发模型的优越性，结果表明热膨胀和保持架导环的流体动压力不容忽视。与文献结果对比发现，在相同的运行速度水平下，过滑程度与轴承尺寸的平方近似成正比。饥饿润滑下轴承滚道的最大热变形达到滚珠-滚道间隙的4倍。保持架仿真结果表明，保持架涡动振幅随着运行速度和不平衡质量的增加而增加，并且一般随着轴向载荷的增加而减小。所提出的模型和对结果的讨论有助于减轻特定条件下的打滑程度，避免保持架不稳定和磨损。