柴油机在运转中轴瓦常出现剥离、龟裂、烧损和严重拉伤等碾瓦现象，不仅影响主机的正常运行，甚至引起因曲轴轴颈磨损严重而报废曲轴。碾瓦后还会产生轴瓦转圈、油孔堵塞现象，导致拉伤、抱缸，给施工单位在人力、物力和财力上造成巨大的经济损失。 １．主要原因 产生碾瓦的主 Diesel engine bearings often occur in the peel, cracking, burning and severe crushing and other crushing phenomenon, not only affect the normal operation of the host, and even lead to serious damage due to crankshaft journal and scrapped crankshaft. After crushing pad bearing will also turn around the phenomenon of plugging the hole, leading to strain, hold cylinder, to the construction unit in human, material and financial resources caused tremendous economic losses. 1. The main reason for crushing Lord