Internal-toothed slewing ring

three-row

Three row cylindrical roller slewing ring bearing from THB has three seat-rings that separate the upper, lower and radial raceways which specify the load of each row of the rollers. Its load capacity is the largest one among the 5 types with ability to bear different loads simultaneously. It's large axle size and radius makes it well suitable for heavy-duty machinery such as bucket wheel excavators, wheel loader, deck cranes, offshore cranes, port cranes, steel transporters, heavy duty mobile cranes, etc. The gear on this device is in form of internal teeth. It has an outer diameter of 4482 mm and the inner diameter of 4218 mm. Its height is 270 mm and it has the structure of a three-row cylindrical roller.