Sleeve Coupling Flange, Size - Sleeve Couplings 8, Flange Type - Sleeve Couplings S, Bore Type - Couplings Fixed Bore, Bore Dia. 1 7/8 in, Outside Dia. 5.45 in, Keyway Size Type 1/2 in x 1/4 in, Length through Bore (In.) 2.09 in, Max. RPM 4,500 RPM, Width (In.) 2.09 in, Height (In.) 5.45 in, Hub Dia. (In.) 5.45 in, Material of Construction Cast Iron, Setscrew Location One Over the Key and One at 90 Degrees