S-Flex Shaft Coupling, Body Style Type-S Flange Close Coupled, Bore Dia. (In.) 2-3/8, Length through Bore (In.) 2.72, Max. RPM 3600, Keyseat Size (In.) 5/8 x 5/16, Outside Dia. (In.) 7.500, Width (In.) 2.72, Height (In.) 7.500, Hub Dia. (In.) 7.500, Material of Construction Cast Iron, Setscrew Location One over the Key and One at 90 Degrees, Max. Angular Misalignment 1 Degree with EPDM/Neoprene Sleeves and 1/4 Degree with Hytrel Sleeves