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Based on quasi-dynamic and moving heat source methods, this article presents a new model to investigate skidding and overheating in ball bearings considering dynamic-thermal coupling effect. Using this model and finite element method, the critical minimum loads for prevention of skidding and the critical maximum loads for prevention of overheating are obtained by the developed software. The limiting speeds of high-speed ball bearings are defined considering prevention of skidding and overheating conditions. Results show that a smaller initial contact angle, oil lubrication, and hybrid ceramic bearing can enlarge the limiting speeds of angular contact ball bearings. Experiments prove the reliability of the method in this article.

Limiting speeds of high-speed ball bearings considering prevention of skidding and overheating conditions