Tubeaxial Companion Flange For Fan Diameter 36 in For Fan Type Tubeaxial Mounting Hole Diameter 1/2 in Material Steel Body Diameter 38 1/4 in Bolt Circle Diameter 38 1/8 in For Use With 3C414 Includes Predrilled Mounting Holes Inside Diameter 36 1/2 in Outside Diameter 38 1/4 in Overall Width 1 1/2 in Product Type Companion Flange 1 Pair