Martin R2 2 3/4 MST Bushing, Ductile Iron, Inch, 2.75" Bore, 4" OD, 4.88" Length

["Split taper bushing for mounting a pulley, sheave, or sprocket on a drive shaft","Solid flange and double-split barrel improve concentricity and provide strong clamping on the shaft","Ductile iron for greater strength than gray cast iron and resistance to wear, galling, and corrosion","Keyed to both shaft and drive component to provide higher torque carrying capacity","Interchangeable with split taper bushings from various manufacturers"]