DG46—50×12型给水泵前后轴承均为2308轴承,轴承加二硫化钼润滑脂,图1为后轴承座结构,挡水环为橡胶制件,给水泵运行中,水泵轴转速高达3000转/分,橡胶档水环运行不到一个月内圈和轴就出现松旷,冷却水滴到轴承上后,在高速旋转的情况下,从挡水环内 DG46-50 × 12 type feed pump front and rear bearings are 2308 bearing, bearing plus molybdenum disulfide grease, Figure 1 for the rear bearing structure, retaining ring for the rubber parts, water pump operation, the pump shaft speed up to 3000 rpm / Min, the rubber file water ring run less than a month within the circle and the shaft appeared loose Kuang, cooling water droplets to the bearings, the case of high-speed rotation, from the water ring