Slewing Bearing For Roadheaders

Roadheader refers to the mechanical equipment used to excavate mine roadways, engineering tunnels, and urban underground projects. It is mainly composed of running mechanism, working mechanism, shipping mechanism and transfer mechanism. As the traveling mechanism moves forward, the cutting head in the working mechanism continuously breaks the rock and transports the broken rock away. The slewing bearings used in roadheaders are mainly single-row ball or three-row roller slewing bearings, and two slewing bearings are used on one piece of equipment. It is required to carry large axial force, radial force, overturning moment and impact force. The main function of the slewing bearing installed on the base is to support the upper end mechanism, connect the base and the tunneling mechanism, and control the steering of the tunneling mechanism; Cannon head rotates.