Sleeve Coupling Spacer Flange Coupling Size 11 Maximum Speed 3 600 RPM Maximum Torque 18 000 in-lb Outside Diameter 8 5/8 in Bore Type Not Applicable Hub Diameter 5 1/4 in Hub Material Cast Iron For Bushing Size Not Applicable Bore Diameter Not Applicable Length through Bore 1 9/16 in System of Measurement Inch Hub Body Length 1/16 in Application Compressors Conveyors Motors Pumps Bore Tolerance Not Applicable