US Patent 11384597 Idler for a window treatment

A window treatment system includes a roller tube, a covering material, a motor drive unit, and an idler. The covering material is coupled to the roller tube such that the covering material is configured to be wound and unwound from the roller tube when the roller tube rotates. The motor drive unit is configured to rotate the roller tube. The idler includes a bearing sleeve, a bearing, a bearing retainer, and a pin. The bearing sleeve and the roller tube rotate together. The bearing sleeve includes a cavity and a flange. The bearing is disposed at least partially within the cavity and also defines a bore. The bearing retainer is disposed between the flange and an outboard face of the bearing to maintain the bearing's position. The pin is disposed in the bore such that the bearing sleeve and the roller tube rotate with respect to the pin.