Tapered Roller Curves (Belt Driven) generally give good package conveying action. The Tapered Roller presents a true conveying surface on a curve giving the correct radial speed along the full length of each roller. The curve radius along with the taper on the roller which comes to a common focal point causes the package to leave the curve in much the same position in which it entered. For best results, there should be live rollers, a minimum of 65% of package length at the entry and at the discharge ends of the curve.