 This study developed a dynamic model to analyze the effects of subsurface mesoscale cracks on the outer ring of full ceramic ball bearings, FCBBs. The model was based on strain energy theory and used to evaluate the impact of different crack lengths on the device's stability. The presence of cracks was also identified through analysis of the vibrational signals produced during operation. The results showed that a small wave peak appeared in the vibration time domain signal when there was a mesoscale crack on the outer ring subsurface, indicating that the crack had evolved from a smaller size to a larger one. Furthermore, the amplitude of the corresponding feature frequency could be used to estimate the crack length. The model was validated with experimental data, demonstrating its accuracy and reliability. This article was authored by Xiaotian Bai, Zhenen Zhang, White Escher, and others.