Lovejoy 69790441329 Steel HercuFlex FX Series 41329 FX 3.5EM Hub, Rigid, 3-7/8" Bore, 6.87" OD, 4.19" Length Through Bore, 1" x 1/2" Keyway, 203500 Inch Pounds Item Torque

                The Hercuflex coupling has increased nominal torque, larger maximum bore size and longer service life. It is interchangeable with standard AGMA flange interface.