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Tiejian Heavy Industry self-developed main bearing of roadheading machine, entering the stage of batch engineering applications

Main As the core key components, the bearings work in underground tunnels for a long time, and their reliability and safety requirements are extremely high. Once a failure occurs, it is difficult to dismantle and replace them, which will lead to construction paralysis and cause huge losses. In the past, due to the lack of test and application data support, it is difficult to effectively verify the reliability of the product, and it is difficult to promote the engineering application.