Tire Coupling Hub, Size - Tire Couplings WE2, Bore Type - Couplings Fixed Bore, Bore Dia. 5/8 In., Outside Dia. 1.85 In., Length through Bore 0.940 In., Rated Torque (In.-Lb.) 190, Max. RPM 7500, Keyseat Size (In.) 3/16 x 3/32, Width (In.) .94, Height (In.) 1.85, Material of Construction Low Carbon Steel, Setscrew Location One Over Keyway, Max. Angular Misalignment 4 Degrees , Ideal For Numerous Industrial Applications, Including Pumps, Motors, Compressors