Hub, Coupling; 1-3/8" Bore; 2.54" Hub Diameter;Jaw Coupling;Hub; Shaft; Finished Bore;Keyway; 2.54" Outside Diameter;1-3/8" Length Thru Bore; L100 Size or Series; Set Screw; Cast Iron; 7000 Max Speed;55.4Nm Torque Length Thru Bore 1.375 Inch |34.925 MillimeterBore 1.375 Inch | 34.925 Millimeter Hub Diameter 2.54 Inch |64.516 MillimeterOutside Diameter 2.54 Inch | 64.516 Millimeter