Sleeve Coupling Spacer Flange Coupling Size 10 Maximum Speed 3 600 RPM Maximum Torque 3 735 in-lb Outside Diameter 7 1/2 in Bore Type Not Applicable Hub Diameter 4 3/8 in Hub Material Cast Iron For Bushing Size Not Applicable Bore Diameter Not Applicable Length through Bore 2 3/8 in System of Measurement Inch Hub Body Length 15/32 in Application Compressors Conveyors Motors Pumps Bore Tolerance Not Applicable