Tubeaxial Companion Flange For Fan Diameter 42 in For Fan Type Tubeaxial Mounting Hole Diameter 5/8 in Material Steel Body Diameter 44 1/4 in Bolt Circle Diameter 44 1/8 in For Use With 3C415 Includes Predrilled Mounting Holes Inside Diameter 42 1/2 in Outside Diameter 44 1/4 in Overall Width 1 1/2 in Product Type Companion Flange 1 Pair