As a key component of machines, angular contact ball bearings are continuously required to operate at high speeds, cage instability has become a prominent problem, which will seriously affect the performance and service life of bearings. In this study, cage instability is investigated based on the dynamic model considering gross skidding and the interaction between balls and raceways, cage, and guiding surfaces. The impact force and friction between the ball and cage pocket, as well as the cage instability under varying situations, are studied. The results indicate that a lower friction coefficient and a lower elastic modulus of the cage may improve cage stability, but a bigger cage pocket clearance will result in cage instability under high-speed conditions. This study may offer recommendations for enhancing the motion stability of the cage.

中文翻译：

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角接触球轴承高速工况下的保持架失稳

角接触球轴承作为机械的关键部件，被要求持续高速运转，保持架失稳已成为突出问题，将严重影响轴承的性能和使用寿命。在本研究中，基于考虑总打滑以及球与滚道、保持架和引导表面之间相互作用的动态模型，研究保持架不稳定性。研究了球和保持架兜孔之间的冲击力和摩擦力，以及不同情况下保持架的不稳定性。结果表明，较低的摩擦系数和较低的保持架弹性模量可以提高保持架的稳定性，但较大的保持架兜孔间隙会导致保持架在高速条件下失稳。这项研究可以为增强保持架的运动稳定性提供建议。