Sleeve Coupling Flange, Coupling Size 9, Maximum Speed 3,750 RPM, Maximum Torque 2,340 in-lb, Outside Diameter 6 11/32 in, Bore Type Round Keyed, Hub Diameter 3 5/8 in, Hub Material Cast Iron, For Bushing Size Not Applicable, Bore Diameter 1 1/2 in, Length through Bore 2 13/32 in, System of Measurement Inch, Hub Body Length 25/32 in, Hub Type Flange Hub, Application Compressors, Conveyors, Motors, Pumps, Bore Tolerance +0.0005 in / +0.0015 in