Motor Mounting Base Compatible Motor Diameter 5.6 in Compatible Ring Diameter 2 1/2 in Compatible NEMA Frame Size 48 Mounting Bolt Hole Spacing Length 1 3/4 in 2 3/4 in Mounting Bolt Hole Spacing Width 4 1/4 in Ring-to-Ring Distance 7 3/16 in Includes (2) Clamps Gray Color Overall Height 2 15/16 in Overall Length 7 5/16 in Overall Width 6 in