用于干模砂型烘烤的烘模窑平车自重 5t,载重量约 30t,其烘烤温度为 6 0 0℃。该烘模窑平车原来采用的是普通 310型单列向心球轴承 (以下图 1　平车轴承简称 310型轴承 ) ,在高温重载的工况下 ,装车使用 5个月后 ,因轴承卡死而不能转动 ,平车轴承如图 1所示。310型轴承其结构与 Drying mold for sand mold baking mold car weighing 5t, carrying capacity of about 30t, the baking temperature of 600 ℃. The baking mold kiln car was originally used in the ordinary 310 single row radial ball bearings (Figure 1 plain bearing referred to as type 310 bearing), under high temperature and heavy load conditions, loading after 5 months, due to the bearing Stuck and can not turn, flat car bearings shown in Figure 1. 310 bearing its structure and