Steel, 1.875 in. Od, 0.781 in. H, hub both ends, 1 end, hub 0.156 in. Lg, 1.000 in. Od, other end, hub 0.250 in. Lg, 1.250 in. Od, counterbored, 1.000 in. Dia, 0.250 in. Deep, 0.375 in. Id center hole, 0.125 in. W, 0.063 in. Deep groove on od of body