Resilient Ring Mounting Base Compatible Motor Diameter 5.63 in Compatible Ring Diameter 2 1/4 in Mounting Bolt Hole Spacing Length 1 11/16 in Mounting Bolt Hole Spacing Width 4 7/16 in Ring-to-Ring Distance 5 1/4 in Includes Set of Mounting Latches Application For Mounting Shaded Pole and PSC Motors in Direct Drive Heating and Air Conditioning Uses Gray Color Overall Length 5 3/8 in