tender for 10000559611720501282320discoflex coupling model : em125/140 , - disc-o-flex coupling complete assembly,model:em 125/140 of lovejoy brand or exact equivalent with finished bore as below. bore-1: 75 mm, keyway - 20 x 6 mm and bore-2: 39 mm, keyway- 11 x 4.5 mm (utility area requirement)