Superior Construction ¼" thick side rails All rollers driven Maintenance free cast iron housing sealed bearings Adjustable structural steel leg assemblies Interchangeable feet to allow pass height changes Fully enclosed, guarded chains, top and bottom Adjustable drive system Easy to adjust without guard removal Access from top of conveyor Synthetic gearbox lubrication All quick connect wiring for easy maintenance Robust roller features 3/16" wall tubing 1 piece stub shafts machined from solid steel bar Hardened sprocket teeth 1" diameter bearing shaft Full weld around circumference of tube Tubing machined at both ends to ensure concentricity Chain Guarding Full guarding top and underneath the conveyor No chain pinch points