Sleeve Coupling Spacer Flange, Coupling Size 8, Maximum Speed 4,500 RPM, Maximum Torque 1,475 in-lb, Outside Diameter 5 29/64 in, Bore Type Not Applicable, Hub Diameter 3 1/4 in, Hub Material Cast Iron, For Bushing Size Not Applicable, Bore Diameter Not Applicable, Length through Bore 2 1/16 in, System of Measurement Inch, Hub Body Length 23/32 in, Application Compressors, Conveyors, Motors, Pumps, Bore Tolerance Not Applicable