Jaw Coupling Hub; 5/8" Bore; 1.36" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; Keyway; 1.36" Outside Diameter; 0.75" Length Thru Bore; L070 Size or Series; Set Screw; Powdered Metal; 14000 Maximum Speed; Buna-N 43.2 | Hytrel/Bronze 114 | Urethane 64.8In-Lbs Torque