tender for 1000055961689107073030disco flex coupling size lm-120/180 - disc-o-flex coupling complete assembly,model:lm-120/180 (i/i) of lovejoy brand or exact equivalent with machined bore as below;. specification: bore -1:dia 48 mm, bore-2: dia 38 mm. with standard key and key locking arrangement. (02/03 area requirement)