To provide a wheel bearing which combines a satisfactory sealing function and a large
pitch circle
diameter from the
viewpoints of
technical performance and monetary cost. A wheel bearing (10) includes a sealing device (66) including at least an outer structure (76) and an inner structure (78) that together define a baffle passage (S) having an inlet (E). The outer structure (76) defines an annular gutter (82) that opens radially outward. An inlet (E) of the baffle passage (S) and a shrink-fit portion (80) of the outer structure (76) are located on each axial side of the gutter (82). The shrink-fit portion (80) of the outer structure (76) is located on one side of a
reference plane (PE) of the outer ring (20) that is perpendicular to the rotation axis (XX) and tangent to an end wall (70) of the outer ring (20) opposite the baffle passage (S) and the gutter (82).