main bearing journal

基本解釋

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、連桿軸頸、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(yīng)力進而提高牙輪鑽頭滾動軸承系統(tǒng)的工作性能，可以在大圓柱滾子軸承中實施變曲率結(jié)搆方案。