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 5/8 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