flexible, lubrication free dura omega couplings for pumps,blower, fan. Omega Coupling No.HP per 100 rpmMaxBasic Torque (kgf.cm)Bore Dia (mm) Maxspeed(rpm) E20.37,50021828E30.597,50042134E40.897,50063942E51.517,5001,08048E102.337,5001,67055E203.736,6002,67060E305.885,8004,21075E408.855,0006,34085E50124,0008,82090E60203,80014,400105E70363,60025,500120E80622,00045,500155E1001371,90098,100171E1202741 ...