Hub body (16) for a composite wheel (10), in particular a composite gear wheel (12), comprising an axis of rotation (14), a first front side of the hub (20), a second front side of the hub (22), an outer lateral surface (24) arranged along the axis of rotation (14) between the first front side of the hub (20) and the second front side of the hub (22),
wherein the outer lateral surface (24) has an engagement gearing (28) with at least one engagement tooth (30) as well as a convex outer lateral section (64),
as well as a composite wheel (10), in particular a composite gear wheel (12), with such a hub body (16),
as well as a steering unit for a motor vehicle with such a composite wheel.