main bearing journal

基本解释

The crankshafts shown in Fig 1-4 is actually made up of various parts such as main bearing journals, rod journal, crank arm, bearing, counter balanced weight and flywheel end.
在图1-4中，曲轴实际上由以下不同的部分组成，它们分别是：主轴承轴颈、连杆轴颈、曲轴臂、轴承、平衡配量（？）以及飞轮端。
In order to decrease the maximum contact stress be tween roller and journal in the rock-bit main cylindrical roller bearing system , the curvature-changing structure can be adopted in it.
为了降低大圆柱滚子与牙爪轴颈之间的峰值接触应力进而提高牙轮钻头滚动轴承系统的工作性能，可以在大圆柱滚子轴承中实施变曲率结构方案。