US Patent 11649879 Portal unit

A portal unit is provided. The portal unit includes a deceleration gear train and a housing. The housing includes an inner side wall that is formed with an input opening at a position above a rotation axial line of a driving wheel, an outer side wall that is formed with an output opening at a coaxial position with the rotation axial line of the driving wheel, and an intermediate wall that connects peripheral edges of the inner side wall and the outer side wall. The inner side wall is provided, at a radially outward position of the input opening, with mount bolts for the suspension unit. The mount bolts each include a shaft portion protruding inwardly in a vehicle width direction.