Study of the quality of plain bearings, used in mining machinery

Plain bearings are an important part of many large and critical units assemblies used in the mining industry. They widely power equipment, powerful pumps, compressors, electric motors internal combustion engines (ICE). usually include anti-friction bushing, shaft surface (bearing journal) oil layer between them. These complex parts which dangerous defects may occur directly affect durability, accuracy reliability entire assembly. To ensure high equipment with plain it is necessary to their quality control, as well a sufficient level monitoring technical condition diagnosing emerging defects. This one main operational tasks that personnel maintenance diagnostic services enterprises have constantly solve. paper presents comparative analysis for various manufacturers. The performance properties given depending on composition. results chemical base, cover intermediate layers ICE liners presented. Comparative characteristics terms composition thickness manufacturers: Cummins POL (Poland), CCEC (China), WETZ (Russia). Recommendations formulated improve bearings.