Sleeve Coupling Flange Size - Sleeve Couplings 7 Flange Type - Sleeve Couplings S Bore Type - Couplings Fixed Bore Bore Dia 1-5/8 In. Outside Dia 4.625 In. Keyway Size 3/8 in x 3/16 In. Length through Bore (In.) 1.84 Max RPM 5250 Width (In.) 1.84 Height (In.) 4.625 Hub Dia (In.) 4.625 Material of Construction Cast Iron Setscrew Location One over the Key and One at 90 Degrees Max Angular Misalignment 1 Degrees For EPDM Neoprene Sleeves 0.25 Degrees For Hytrel Sleeves