1前言内燃机车轴箱是联系轮对与构架的活动关节，起着传递轴载荷、牵引力、制动力等垂直和水平力的作用。东风。型机车轴箱轴承，原沿用东风型的972832QT轴承，该轴承经多年运用，其故障率较低。但该轴承在结构上存在着只能承受径向力而不能承受轴向力的缺点，需要在轴头上增设 1 Foreword The diesel locomotive axle box is to link the activities of the wheel and frame articulation, plays the role of transmission shaft load, traction, braking force and other vertical and horizontal force. Dongfeng. Type locomotive axlebox bearings, the original use of the type of 972832QT Dongfeng bearings, the bearing after years of use, the failure rate is low. However, the bearing in the existence of the structure can only withstand the radial force can not afford the shortcoming of axial force, the need to increase the head