Variable-pitch bearing assembly, variable-pitch system and wind generating set

The utility model provides a variable pitch bearing assembly, a variable pitch system and a wind generating set, the variable pitch bearing assembly comprises a bearing body and a connecting assembly, the connecting assembly comprises a locking component, a locking piece and a connecting rod, the locking component and the locking piece are located on the two sides, away from each other, of an outer ring and a hub respectively and clamp the outer ring and the hub, and the connecting rod is connected with the locking component. The axial ends of the at least two connecting rods are connected to the same locking component, and the other ends of the at least two connecting rods extend out of the connecting hole to be connected with the locking piece. Due to the fact that at least two connecting rods in the connecting assembly penetrate through the through holes and the connecting holes, one ends of the connecting rods are connected to the same locking component, the other ends of the connecting rods are connected