Jaw Coupling Hub; 1-1/4" Bore; 3.19" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; Keyway; 3.37" Outside Diameter; 1.81" Length Thru Bore; HF30 Size or Series; Set Screw; Carbon Steel; 4000 Maximum Speed; Orange/White 3279 | Green/Gray 6183In-Lbs Torque

1-1/8-6 Size; 1-9/16" OD