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.
在圖1-4中，曲軸實際上由以下不同的部分組成，它們分別是：主軸承軸頸、連杆軸頸、曲軸臂、軸承、平衡配量（？）以及飛輪耑。
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.
爲了降低大圓柱滾子與牙爪軸頸之間的峰值接觸應力進而提高牙輪鑽頭滾動軸承系統的工作性能，可以在大圓柱滾子軸承中實施變曲率結搆方案。