Keyless Locking Assembly, Keyless Bushing Type Multi-Screw Locking Assembly, Keyless Bushing Series C123E, For Shaft Dia. – Bushings 1 3/16 in, Outside Dia. 2.165 in, Overall Length 1.358 in, Material – Bushings Steel, Transmissible Torque 31 ft-lb, Shaft Dia. Tolerance .002 in, Outside Dia. Tolerance .002 in, Transmissible Thrust (Lbs.) 7,517.813, Hub Contact Pressure (PSI) 25,090.629, Locking Bolt Quantity 6, Bolt Size M6 x 20, Withstand Temp. (Deg. F) Up to 400 Degrees F