Jaw Coupling Hub; 2-1/8" Bore; 4" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; Keyway; 4.8" Outside Diameter; 1.63" Length Thru Bore; 500 Size or Series; Set Screw; Magnesium Alloy; 1800 Maximum Speed; Neoprene 2194.8 | Urethane 3292.2 | Hytrel 6584.4In-Lbs Torque

Jaw Coupling Hub; 5/8" Bore; 2-1/8" Hub Dia; Jaw Coupling; Hub; Shaft; Finished Bore; Keyway; 2.125" Outside Diameter; 1.015" Length Thru Bore; PM90 Size or Series; Set Screw; Magnesium Alloy; Neoprene 224 | Urethane 336 | Hytrel 672In-Lbs Torque