three row cylindrical roller slewing bearings

THB Triple row cylindrical roller slewing bearing has three seat-rings, which separating the upper, lower and radial raceways, via which the load of each row of the rollers maybe specified. It may bear different loads simultaneously and its load capacity is the largest one among the four models. Owing to large size of its axle and radius, it is sturdy and especially suitable for heavy-duty machines which require large working diameter. Such as bucket wheel excavators, wheeled cranes, deck cranes, port cranes, steel transporters, heavy duty mobile cranes, etc.