Roller blind friction-creating assembly and one-way bearing for the same

A one-way bearing having a central axis, comprising:

• an inner race comprising an outer surface;
• an outer race surrounding, considered in a plane transversal to the central axis, at least partially the inner race and comprising an inner surface, at least a portion of the inner surface being radially spaced apart from the outer surface of the inner race to define at least one coupling member-receiving chamber therebetween;
• and
• at least one unidirectional coupling member provided in said at least one coupling member-receiving chamber;
• wherein the outer surface of the inner race at least partially forms first and second tangential wall portions at least partially delimiting said at least one coupling member-receiving chamber;
• wherein said at least one unidirectional coupling member engages with the inner surface of the outer race when the outer race is rotated about the central axis in a first direction, thus abutting one of the first and second tangential wall portions and rotating the inner race together with the outer race in the first direction;
• and
• wherein said at least one unidirectional coupling member slides along the inner surface of the outer race when the outer race rotates about the central axis in a second direction opposed to the first direction, thus allowing a free rotation of the outer race with respect to the inner race,
• said at least one unidirectional coupling member having an outer surface selectively engageable with the inner surface of the outer race when the outer race is rotated about the central axis.