W Hub 1.2" x1.2" x1.5", A & I Products, Mfr#: A-RBW916

W Hub, Bore: 9/16" round, Dim A (1): 1-5/8", Dim B (2): 1-13/16", Dim C (3): 7/16", Dim D (4): 1", Keyway: 1/8" X 1/16"