The four arms of the spider, known AS trunnions, are ASsembled into bearings in the ends of the two shaft yokes.
万向节十字轴的四个轴颈叫做万向节十字头，分别装在两个万向节叉顶端的轴承中。
The four arms of the spider, known AS trunnions, are ASsembled into bearings in the ends of the two shaft yokes.
万向节十字轴的四个轴颈叫做万向节十字头，分别装在两个万向节叉顶端的轴承中。
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