The Frigidaire 134793511 Dryer Idler Arm Assembly maintains proper tension on the dryer drum belt to support steady drum rotation. This mechanical assembly holds the idler pulley in position and applies pressure to the belt as the motor turns the drum during drying cycles. Proper belt tension supports consistent movement and assists with transferring motor power to the drum. A damaged... https://www.hnkparts.com/134793511-frigidaire-idler-arm-assy