The main bearing journals fit into the cylinder block and the big end journals align with the connecting rods.主要轴承曲颈安装在气缸体和与连杆大头末端匹配的曲颈上。
The throw of the crankshaft, i.e. the distance between the main journal and the big end centers, controls the length of 曲轴的摆幅，即在主要曲颈和连杆大头末端中心之间的距离，控制着冲程的行程。