Sleeve Coupling Flange, Coupling Size 10, Maximum Speed 3,600 RPM, Maximum Torque 3,735 in-lb, Outside Diameter 7 1/2 in, Bore Type Round Keyed, Hub Diameter 4 3/8 in, Hub Material Cast Iron, For Bushing Size Not Applicable, Bore Diameter 2 1/8 in, Length through Bore 2 23/32 in, System of Measurement Inch, Hub Body Length 13/16 in, Hub Type Flange Hub, Application Compressors, Conveyors, Motors, Pumps, Bore Tolerance +0.0005 in / +0.0020 in