(一)绪言: 我厂现阶段生产和试制的几种车型,通用二种变速器,一种中心距为121.125毫米,另一种为135毫米,如表1。它们分别适用于发动机最大扭矩为38公斤-米和46公斤-米,前者装用二吨半越野车和民用五吨车,后者装用三吨半越野车,采用的材质均为18CrMnTi,进行气体渗炭,具体参数见表2。 (A) Introduction: I plant the current production and trial production of several models, two general-purpose transmission, a center distance of 121.125 mm, the other is 135 mm, as shown in Table 1. They were applied to the maximum engine torque of 38 kg-m and 46 kg-m, the former equipped with two-and a half-off-road vehicles and civilian five-ton vehicles, the latter equipped with three-ton semi-off-road vehicles, the materials used are 18CrMnTi, gas infiltration Carbon, specific parameters in Table 2.