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double row ball slewing bearing
roller slewing bearing
single row ball slewing bearing
single-row ball slewing bearing, cross roller slewing bearing, double-row ball slewing bearing, three-row roller slewing bearing, according to Standard JG/T66-1999, JG/T67-1999, JG/T68-1999 and JB/T2300-1999
slewing bearings are essential transmission components for machinery which needs a relative rotation and bears axial force, radial force and toppling movements at the same time between two parts of the machinery. They are mainly used for excavators, tower cranes, truck cranes, crawler cranes, and also widely used in engineering machinery, construction machinery, port machinery, metallurgical machinery, light machinery, environmental protection machinery, engineering vehicles, solar energy, wild power, etc.