ROLLING BEARING DEVICE FOR WHEEL

[Problem] To provide a wheel rolling bearing apparatus which can reinforce a proximal end portion of a first flange portion of an outer race member effectively. [Means for Resolution] A first flange portion 21 is provided on an upper portion side of an outer circumference of an outer race member 11. A first reinforcement portion 26 is provided which connects a proximal end portion 21b of the first flange portion 21 with the outer circumferential surface 11c of the outer race member 11. The first flange portion 21 is reinforced by the first reinforcement portion 26 by connecting the proximal end portion of the first flange portion 21 with the outer circumferential surface 11c by a convexly curved surface.