Poly-Round bearings are polymer plane bearings that directly interchange with mounted bearings, and have no balls, no grease, no cage, and no seals. These features make them clean-operating and they are metal detectable, x-ray detectable, and optically detectable blue polymer, which is designed to enhance food safety of edible products. Metal detectable Poly-Round bearings are especially beneficial in applications directly over or near food product zones. The metal detectable characteristics of 'ON' polymer aid in the detection and recovery of foreign materials, should a failure occur. EDT's metal detectable Poly-Round bearings are available in shaft sizes from 1/2- to 1-7/16-in., in all styles of machined- or cast- stainless housings.