Abstract: A conveyor belt system utilizes an idler assembly to support the conveyor belt. The idler assembly includes a pair of legs having a plate suspended therebetween. The plate has slots formed therein parallel to the direction of travel of the conveyor belt. A wear bar has an upper surface formed of a material having a relatively low coefficient of sliding friction with the conveyor belt and a shaft extending from a bottom surface thereof. The shaft is received in the slot of the plate by sliding the wear bar laterally between the plate and the conveyor belt. Once received in the slot, a threaded nut is applied to the threads of the shaft and rotated into contact with the plate thereby compressing the plate between the nut and the bottom surface of the wear bar.