A guard, more particularly, a safety washer for use in conjunction with the outer anti-friction bearing assembly of a front wheel construction currently in use by manufacturers of motor vehicles, for example, by General Motors and other automobile manufacturers. This unique washer is made of heavy duty metal, can be readily lined up with and slid inwardly over the usual spindle and capped over and retentively held in its functioning position on the inner ring-type race of the bearing assembly. The outer marginal edge of the washer is provided with a push-fitted positioning and retaining flange. This outstanding flange constitutes an abutment which functions to keep the bearing assembly, particularly the inner race and roller-equipped cage, in a captive locale. Accordingly, displacement of the wheel should the cage fracture, is reduced to a practical minimum.