The inner ring of the self aligning roller bearing used in the vibrating screen has two small retaining edges and a middle retaining ring. The inner ring guides the middle retaining ring to rotate, and the middle retaining ring guides two rows of spherical rollers to rotate. This type of bearing has a larger size, with small retaining edges and a copper solid integral cage, which is also guided to rotate by the middle retaining ring. The rollers and raceways of CA and CC bearings have been optimized and processed, which helps to lubricate the rollers and raceways and reduce friction and heat generation. E-type bearings are reinforced and increase their load-bearing capacity by increasing the diameter of the rollers. Sealing type of self-aligning roller bearings.

The self-aligning roller bearings used in the vibrating screen operate under high vibration conditions, requiring a large radial clearance, usually between groups C3 to C4. The bearing adopts a stamped steel cage, and after surface heat treatment and hardening, the wear resistance is improved. The large-sized vibrating screen bearing has no retaining edges on the inner ring, and the middle retaining ring is located on the outer raceway, guided by the outer raceway for rotation. At the same time, a layer of polytetrafluoroethylene is also padded on the surface of the cylindrical inner hole, which can absorb shock and resist corrosion.

The angle deviation of self-aligning roller bearings has the function of automatic centering, which automatically adjusts the impact of angle deviation caused by poor installation conditions. The adaptability of self-aligning roller bearings to angle deviation varies with the width series and diameter series of the bearings. When the inner diameter is the same, the wider the bearing and the larger the outer diameter, the greater the allowable angle deviation.