Sleeve Coupling Spacer Hub Coupling Size 5 Maximum Speed 7 600 RPM Maximum Torque 312 in-lb Outside Diameter 2 in Bore Type Round Keyed Hub Diameter 2 in Hub Material Cast Iron For Bushing Size Not Applicable Bore Diameter 7/8 in Length through Bore 1 3/32 in System of Measurement Inch Hub Body Length Not Applicable Hub Type Spacer Hub Application Compressors Conveyors Motors Pumps Bore Tolerance +0.0005 in / +0.0015 in