在专用试验机上模拟发动机主轴轴承D12 76 72 0QT1 K2进行断油性能试验。结果表明 ,17s、30s断油试验证明该轴承具有较强的抗断油能力 ,但 30min断油试验 ,结果三套轴承均已破坏。介绍了试验内容和方法 ,获得了大量有价值的数据 ,积累了综合判定轴承损坏的经验。附图 4幅 ,表 3个。 In a special test machine simulation engine main bearing D12 76 72 0QT1 K2 oil off performance test. The results show that the 17s, 30s off the oil test proved that the bearing has a strong anti-oil capacity, but the oil-off test 30min, the results of three sets of bearings have been destroyed. Introduced the test content and method, obtained a lot of valuable data, accumulated a comprehensive judgment of the bearing damage experience. Figure 4, Table 3.