Taper Lock Bushing Bushing Type Taper Lock Bore Bushing Series 1210 Bore Diameter 30 mm Length 1 in Bolt Circle Diameter 1.75 in Bolt Size Not Applicable System of Measurement Metric Fastener Tightening Torque Capacity 3 600 in-lb Flange Type Flangeless Flange Width Not Applicable For Shaft Type Keyed Includes (2) Set Screws Keyway Height 3.5 mm Keyway Width 8 mm Length Less Flange Not Applicable Material Steel Overall Diameter 1.875 in Taper 8 Degrees