023 and 024 series internal gear double row different-diameter ball slewing bearings consist of three seat rings. Two rows of steel balls with varied diameters are installed in upper and lower raceways. The 90° contact angle design enables the bearing to withstand combined axial loads, radial loads and heavy overturning moments simultaneously.

Equipped with internal teeth on the inner ring for rotary drive, this slewing ring comes with pre-machined mounting holes, grease nipples and reliable sealing structure for straightforward installation and routine maintenance. Featuring rigid construction, stable rotation and outstanding load capacity, it is widely applied for tower cranes, truck-mounted cranes and medium-heavy rotary engineering machinery. Custom gear parameters, dimensions and surface treatments are available upon request.