1008X1/2-A Taper Lock Bushing, Bushing Type Taper Lock, Bore Diameter 1/2 in, Length 0.875 in, Bolt Circle Diameter 1.33 in, Bolt Size Not Applicable, System of Measurement Inch, Fastener Tightening Torque Capacity 1,200 in-lb, Flange Type Flangeless, Flange Width Not Applicable, For Shaft Type Keyed, Includes (2) Set Screws, Keyway Height 1/16 in, Keyway Width 1/8 in, Length Less Flange Not Applicable, Material Steel, Overall Diameter 1.375 in, Taper 8 Degrees