This gear processing mechanism is designed around the outer circumference of the outer ring, which functions as both the bearing ring and the driving gear ring. By engaging a smaller driving gear with the outer teeth of the outer ring, rotational power is effectively transmitted. When the smaller gear rotates, it initiates the rotation of the outer ring, while the inner ring remains fixed to the base or frame. This innovative design allows the outer ring to drive the connected upper structure, such as the upper frame of excavators, in a seamless manner. Our steel balls feature a four-point contact design with the inner and outer ring raceways, enabling them to bear axial loads, radial loads, and overturning moments simultaneously. This meets the demands of combined force conditions. With its compact structure, composite load-bearing capacity, and active transmission capabilities, this product is ideal for the power rotation needs of medium and light equipment. Choose us as your trusted China supplier and factory for high-quality gear processing solutions.