... 38, 50, 57, 60, 63.5, 76, 89---- 1. carbon steel, stainless steel, pvc, nylon2. zinc-plating, galvanizing, chromeorplated3. Use press bearing or ... . shaft could be spring-loaded or fixed.5. All rollers delivered are attached with QC inspection reports. Offer tooling designing ... -plating could well protect the roller.6. GCS gravity rollers falls into lots of categories. Gravity roller, light-duty ...