'Tire Coupling Hub, Size - Tire Couplings WE3, Bore Type - Couplings Fixed Bore, Bore Dia. 1-3/8 In., Outside Dia. 2.32 In., Length through Bore 1.500 In., Rated Torque (In.-Lb.) 365, Max. RPM 7500, Keyseat Size (In.) 5/16 x 5/32, Width (In.) 1.50, Height (In.) 2.32, 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'