Tapered conveyor rollers are specially designed for use in curved roller conveyor sections. Each roller has a full diameter at the outside edge of the conveyor frame and tapers toward the inside of the frame. As items progress through the curved section, the tapered design helps them maintain their position on the conveyor as they go around the curved section. Tapered rollers are available in two constructions – Grooved and Non-Grooved. Grooved Tapered Rollers are manufactured to be used with a design-specific size of drive belts for the system.  Each roller is motor-driven through the use of drive bands. Using these on a curve prevents items from stopping in that area. Non-Grooved Tapered Rollers are for curved roller conveyor sections that don’t require a motor-driven solution to keep items moving forward.