Bearing stopper plate

Abstract

In a bearing stopper plate (520), an outer edge (522) between two fastening portions (521) adjacent to each other in the circumferential direction out of three fastening portions (521) is positioned on the outer side of an outer ring (512) of a ball bearing (510) in the axis radial direction. An inner edge (523) between two fastening portions (521) adjacent to each other in the circumferential direction out of the three fastening portions (521) is positioned on the outer side of an inner ring (511) of the ball bearing (510) in the axis radial direction. An inner edge (523) close to one fastening portion (521) out of the three fastening portions (521) is positioned on the outer side of a cage (513) of the ball bearing (510) in the axis radial direction. A place between two linear portions (524) adjacent to each other in the circumferential direction out of the three fastening portions (521) is a curved portion (525) formed in a curved form. Figure 4