The present invention addresses the problem of providing a bearing device for wheels, the bearing device for wheels being configured so as to reduce an amount of deformation of an opening of an outer member while minimizing an increase of an overall the weight, thus preventing a deterioration in rolling fatigue life. A bearing device for wheels is provided with: an outer member having double-row outer rolling surfaces; a hub ring having a wheel mounting flange and having a small-diameter stepped section; and an inner member constituted by at least one inner ring press-fitted over the small-diameter stepped section, the inner member having double-row inner rolling surfaces facing the double-row outer rolling surfaces. A band-shaped section having a predetermined band width and protruding radially by a protrusion amount is formed on at least a part of the wheel mounting flange-side outer peripheral portion of the opening of the outer member.
BEARING DEVICE FOR WHEELS
16.08.2018
Patent
Elektronische Ressource
Englisch