Abstract: A motionless conveyor belt idler system for replacing conventional conveyor rotating belt idler systems consisting of a plurality of fixed, straight, low friction belt support bars of equal length, made of ultra high molecular weight polyethylene, for slideably supporting the product side and the return side of a conveyor belt. All fixed, straight, low friction belt support bars are slideably mounted on the idler system frame to permit easier replacement even when the conveyor belt is loaded with product. All of said belt support bars are identically configured to be interchangeable with one another. Additionally the conveyor belt idler system may be provided with fixed, straight low friction conveyor belt product side and return side edge guides which are also constructed of ultra high molecular weight polyethylene, and which are identically configured with the fixed, belt support idlers in all dimensions except length.