Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 3/16 in Keyless Bushing Type Multi-Screw Locking Assembly Material Carbon Steel Outside Diameter 2 5/32 in Overall Width 0.819 in System of Measurement Inch Hub Contact Pressure 13 370 psi Maximum Transmitted Torque 376 ft-lb Outside Diameter Tolerance +0.0015 in