Boston Gear FC20-3-4 Complete Coupling for 3/4 Inch Bore is a FC20-series shaft coupling specified for a 0.75 in bore. FC-series couplings from Boston Gear are manufactured from high-quality alloy steel rather than powdered metal, delivering greater strength in industrial drive assemblies. The FC20-3/4 designation identifies the 3/4 in bore size within the FC20 family and is documented in Boston Gear catalogs as the FC20 bore option.
