Ball spline pair is a new type of translation pair, used for large torque transfer with low resistance.

滚珠花键副是一种新型移动副，用于低阻力传递大扭矩。

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Next, carries Hertzian contact resonance analyses to ball straight-rotary pair, ball spline pair and ball unload pair, calculates contact resonance frequencies.

其次，对作动器的滚珠直族副、滚珠花键副、滚珠卸荷副分别进行了赫兹接触共振分析，计算出接触共振频率；

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