Abstract Based on experimental life data on silicon nitride balls, the stress-life exponent and life constant in the generalized ball life equation, developed earlier, are modified to better simulate the fatigue life of silicon nitride balls in hybrid ball bearings. The modified ball life equation is then integrated with generalized life equations for the outer and inner races to model the life of a complete hybrid ball bearing. It is found that in view of the relatively high stress-life exponent for silicon nitride balls, computation of hybrid bearing life with infinite ball life may not be unreasonable. Model predictions are in good agreement with limited available experimental life data on hybrid ball bearings.

中文翻译：

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混合球轴承的寿命模型增强

摘要 基于氮化硅球的实验寿命数据，对较早开发的广义球寿命方程中的应力-寿命指数和寿命常数进行了修改，以更好地模拟混合球轴承中氮化硅球的疲劳寿命。然后将修改后的球寿命方程与外圈和内圈的广义寿命方程相结合，以模拟完整混合球轴承的寿命。研究发现，鉴于氮化硅滚珠的应力-寿命指数相对较高，计算具有无限滚珠寿命的混合轴承寿命可能并非不合理。模型预测与混合球轴承的有限可用实验寿命数据非常吻合。