Jaw Coupling Hub; 3/4" Bore; 2.11" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; Keyway; 2.11" Outside Diameter; 0.81" Length Thru Bore; L090 Size or Series; Set Screw; Powdered Metal; 9000 Maximum Speed; Buna-N 144 | Hytrel/Bronze 401 | Urethane 216In-Lbs Torque