A bearing ring is provided, including a body and an end face (3; 6). The problem of providing a bearing assembly having a space-saving preloading device which can be actuated quickly is solved for this bearing ring by a piston (8; 15) of a fluidic preloading device; the piston being accommodated in the end face (3; 6). A bearing assembly is also provided including a bearing (2) having a bearing ring (1) and a first fluidic preloading device for setting a bearing preload, this preloading device acting on a first end face (3) of the bearing ring (1), and further including a second fluidic preloading device which acts in the opposite direction on a second end face (6) of the bearing ring (1).