Taper Lock Bushing Bushing Type Taper Lock Bore Bushing Series 1215 Bore Diameter 5/8 in Length 1.5 in Bolt Circle Diameter 1.75 in Bolt Size Not Applicable System of Measurement Inch Fastener Tightening Torque Capacity 3 550 in-lb Flange Type Flangeless Flange Width Not Applicable For Shaft Type Keyed Includes (2) Set Screws Keyway Height 1/16 in Keyway Width 3/16 in Length Less Flange Not Applicable Material Steel Overall Diameter 1.875 in Taper 8 Degrees