Falk 1203219 Bored To 3-7/16 In Bore Coupling Hub

The Falk 1203219 coupling hub is bored to a precise 3-7/16 inch bore, establishing the exact shaft interface required for compatible Falk coupling assemblies. This part number identifies a Falk-made hub intended for use where a specific bore size is necessary to achieve proper alignment and concentricity between connected components. With a 3-7/16 in bore, it supports snug engagement with mating shafts or hubs designed to match that diameter, helping to minimize runout and vibration in driven equipment. As a Falk component, it is part of a family of hubs and couplings engineered for reliable, long-term performance in industrial power transmission applications. The bore dimension is the critical spec that determines compatibility with other elements in the Falk coupling system and with shaft diameters specified for the installation. Use of this bored hub is appropriate in setups where a pre-machined bore size is required to meet system tolerances and to ensure a stable, precise connection in service. The part number 1203219 uniquely identifies this bore-to-size Falk hub within catalogs and inventory, facilitating accurate selection for project-specific fitment without guesswork.