Hub, Elastomeric Coupling; 1-1/8" Bore; 3-1/4" Outside Diameter; 1-7/8" Hub Diameter; Flanged; Finished Bore; 1.06" Length Thru Bore; 5J Size or Series; No Bushing; Keyway; Cast Iron Material; 7600 Maximum Speed; 240In-Lbs Torque