THB Ball and roller combined slewing bearings incorporate a row of rollers and a row of balls into the same unit. This combination of rolling elements is designed to handle small eccentricities at relatively high axial loads. They are mainly applied in mining and mill equipments, materials handling equipments, tower and mobile cranes, etc. The raceways diameter of our ball and roller combined slewing bearings are up to 1270mm to 5016mm. They are divided into nongear, external gear and internal gear. At the same time, we also are capable of designing according to customers’ special requirements.