The 190 Spool Curves are designed to be slave driven from the 190-NSP Conveyor. Curves are used when turns in the conveyor line are necessary,Bed - 9-1/2" deep x 12 ga. formed steel frame powder painted Rollers - 2-1/2" dia. tapered to 1-11/16" dia. x 16 ga. and 1.9" dia. x 16 ga. galvanized rollers Overall Frame Widths: 16", 18", 20", 22", 24", 26", 28", 30", 34", 36", 40", & 42" Adjustable Floor Supports Available Available in 30°, 45°, 60° & 90°.