Jaw Coupling Hub; 1/2" Bore; 1-3/4" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; No Keyway; 1.75" Outside Diameter; 0.82" Length Thru Bore; L075 Size or Series; Set Screw; Sintered Iron; 11000 Maximum Speed; NBR 90 | Hytrel/Bronze 227 | Urethane 135In-Lbs Torque

2.54" Outside diameter; Jaw Coupling; Spider; Nitrile Butadiene Rubber; 0.61" Thickness; L099/100 | AL099/100 Size or Series; 7000 Max Speed; 417In-Lbs Torque